61604672 has 28 divisors (see below), whose sum is σ = 127564896. Its totient is φ = 29462400.

The previous prime is 61604663. The next prime is 61604677. The reversal of 61604672 is 27640616.

It is a super-2 number, since 2×61604672² = 7590271224455168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61604677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19454 + ... + 22397.

Almost surely, 2^61604672 is an apocalyptic number.

It is an amenable number.

61604672 is an abundant number, since it is smaller than the sum of its proper divisors (65960224).

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

61604672 is a wasteful number, since it uses less digits than its factorization.

61604672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41886 (or 41876 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 61604672 is about 7848.8643764560. The cubic root of 61604672 is about 394.9461487234.

The spelling of 61604672 in words is "sixty-one million, six hundred four thousand, six hundred seventy-two".