74657012 has 6 divisors (see below), whose sum is σ = 130649778. Its totient is φ = 37328504.

The previous prime is 74656993. The next prime is 74657017. The reversal of 74657012 is 21075647.

It can be written as a sum of positive squares in only one way, i.e., 68326756 + 6330256 = 8266^2 + 2516^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74657012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74657017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9332123 + ... + 9332130.

It is an arithmetic number, because the mean of its divisors is an integer number (21774963).

Almost surely, 2^74657012 is an apocalyptic number.

It is an amenable number.

74657012 is a deficient number, since it is larger than the sum of its proper divisors (55992766).

74657012 is a wasteful number, since it uses less digits than its factorization.

74657012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18664257 (or 18664255 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 74657012 is about 8640.4289245384. The cubic root of 74657012 is about 421.0724895536.

The spelling of 74657012 in words is "seventy-four million, six hundred fifty-seven thousand, twelve".