62001981 has 12 divisors (see below), whose sum is σ = 90446460. Its totient is φ = 40924800.

The previous prime is 62001967. The next prime is 62001991. The reversal of 62001981 is 18910026.

It can be written as a sum of positive squares in 2 ways, for example, as 47485881 + 14516100 = 6891^2 + 3810^2 .

It is not a de Polignac number, because 62001981 - 2⁶ = 62001917 is a prime.

It is a super-2 number, since 2×62001981² = 7688491295848722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62001911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33196 + ... + 35013.

It is an arithmetic number, because the mean of its divisors is an integer number (7537205).

Almost surely, 2^62001981 is an apocalyptic number.

It is an amenable number.

62001981 is a deficient number, since it is larger than the sum of its proper divisors (28444479).

62001981 is a wasteful number, since it uses less digits than its factorization.

62001981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68316 (or 68313 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 62001981 is about 7874.1336666328. The cubic root of 62001981 is about 395.7933762905.

The spelling of 62001981 in words is "sixty-two million, one thousand, nine hundred eighty-one".