74672656 has 10 divisors (see below), whose sum is σ = 144678302. Its totient is φ = 37336320.

The previous prime is 74672629. The next prime is 74672657. The reversal of 74672656 is 65627647.

It can be written as a sum of positive squares in only one way, i.e., 56010256 + 18662400 = 7484^2 + 4320^2 .

It is not an unprimeable number, because it can be changed into a prime (74672657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2333505 + ... + 2333536.

Almost surely, 2^74672656 is an apocalyptic number.

It is an amenable number.

74672656 is a deficient number, since it is larger than the sum of its proper divisors (70005646).

74672656 is a wasteful number, since it uses less digits than its factorization.

74672656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4667049 (or 4667043 counting only the distinct ones).

The product of its digits is 423360, while the sum is 43.

The square root of 74672656 is about 8641.3341562516. The cubic root of 74672656 is about 421.1018987044.

The spelling of 74672656 in words is "seventy-four million, six hundred seventy-two thousand, six hundred fifty-six".