61871460 has 96 divisors (see below), whose sum is σ = 202874112. Its totient is φ = 13793280.

The previous prime is 61871417. The next prime is 61871461. The reversal of 61871460 is 6417816.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (61871461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15424 + ... + 19016.

It is an arithmetic number, because the mean of its divisors is an integer number (2113272).

Almost surely, 2^61871460 is an apocalyptic number.

61871460 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 61871460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101437056).

61871460 is an abundant number, since it is smaller than the sum of its proper divisors (141002652).

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

61871460 is a wasteful number, since it uses less digits than its factorization.

61871460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3653 (or 3651 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 61871460 is about 7865.8413408866. The cubic root of 61871460 is about 395.5154516262.

The spelling of 61871460 in words is "sixty-one million, eight hundred seventy-one thousand, four hundred sixty".