61597928 has 32 divisors (see below), whose sum is σ = 132283200. Its totient is φ = 26341632.

The previous prime is 61597927. The next prime is 61597957. The reversal of 61597928 is 82979516.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (61597927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33776 + ... + 35552.

It is an arithmetic number, because the mean of its divisors is an integer number (4133850).

Almost surely, 2^61597928 is an apocalyptic number.

It is an amenable number.

61597928 is an abundant number, since it is smaller than the sum of its proper divisors (70685272).

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

61597928 is a wasteful number, since it uses less digits than its factorization.

61597928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409 (or 2405 counting only the distinct ones).

The product of its digits is 272160, while the sum is 47.

The square root of 61597928 is about 7848.4347484068. The cubic root of 61597928 is about 394.9317363207.

The spelling of 61597928 in words is "sixty-one million, five hundred ninety-seven thousand, nine hundred twenty-eight".