74656916 has 6 divisors (see below), whose sum is σ = 130649610. Its totient is φ = 37328456.

The previous prime is 74656903. The next prime is 74656927. The reversal of 74656916 is 61965647.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 71402500 + 3254416 = 8450^2 + 1804^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9332111 + ... + 9332118.

It is an arithmetic number, because the mean of its divisors is an integer number (21774935).

Almost surely, 2^74656916 is an apocalyptic number.

It is an amenable number.

74656916 is a deficient number, since it is larger than the sum of its proper divisors (55992694).

74656916 is a wasteful number, since it uses less digits than its factorization.

74656916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18664233 (or 18664231 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The square root of 74656916 is about 8640.4233692569. The cubic root of 74656916 is about 421.0723090705.

The spelling of 74656916 in words is "seventy-four million, six hundred fifty-six thousand, nine hundred sixteen".