62897640 has 128 divisors (see below), whose sum is σ = 212163840. Its totient is φ = 14800896.

The previous prime is 62897633. The next prime is 62897647. The reversal of 62897640 is 4679826.

It is an interprime number because it is at equal distance from previous prime (62897633) and next prime (62897647).

It is a super-2 number, since 2×62897640² = 7912226235139200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 62897592 and 62897601.

It is not an unprimeable number, because it can be changed into a prime (62897647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35004 + ... + 36756.

It is an arithmetic number, because the mean of its divisors is an integer number (1657530).

Almost surely, 2^62897640 is an apocalyptic number.

62897640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 62897640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106081920).

62897640 is an abundant number, since it is smaller than the sum of its proper divisors (149266200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

62897640 is a wasteful number, since it uses less digits than its factorization.

62897640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803 (or 1799 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 62897640 is about 7930.8032380081. The cubic root of 62897640 is about 397.6901032861.

The spelling of 62897640 in words is "sixty-two million, eight hundred ninety-seven thousand, six hundred forty".