64074992 has 20 divisors (see below), whose sum is σ = 130679880. Its totient is φ = 30351168.

The previous prime is 64074979. The next prime is 64075013. The reversal of 64074992 is 29947046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105083 + ... + 105690.

It is an arithmetic number, because the mean of its divisors is an integer number (6533994).

Almost surely, 2^64074992 is an apocalyptic number.

It is an amenable number.

64074992 is an abundant number, since it is smaller than the sum of its proper divisors (66604888).

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

64074992 is a wasteful number, since it uses less digits than its factorization.

64074992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210800 (or 210794 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 64074992 is about 8004.6856278058. The cubic root of 64074992 is about 400.1561723509.

The spelling of 64074992 in words is "sixty-four million, seventy-four thousand, nine hundred ninety-two".