74790864 has 50 divisors (see below), whose sum is σ = 216470210. Its totient is φ = 24929856.

The previous prime is 74790839. The next prime is 74790869. The reversal of 74790864 is 46809747.

It can be written as a sum of positive squares in only one way, i.e., 46785600 + 28005264 = 6840^2 + 5292^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74790869) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 27559 + ... + 30150.

Almost surely, 2^74790864 is an apocalyptic number.

It is an amenable number.

74790864 is an abundant number, since it is smaller than the sum of its proper divisors (141679346).

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

74790864 is a wasteful number, since it uses less digits than its factorization.

74790864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57729 (or 57714 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 74790864 is about 8648.1711361420. The cubic root of 74790864 is about 421.3239852205.

The spelling of 74790864 in words is "seventy-four million, seven hundred ninety thousand, eight hundred sixty-four".