74912 has 12 divisors (see below), whose sum is σ = 147546. Its totient is φ = 37440.

The previous prime is 74903. The next prime is 74923. The reversal of 74912 is 21947.

It can be written as a sum of positive squares in only one way, i.e., 59536 + 15376 = 244^2 + 124^2 .

It is a super-2 number, since 2×74912² = 11223615488, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139 + ... + 1202.

2⁷⁴⁹¹² is an apocalyptic number.

It is an amenable number.

74912 is a deficient number, since it is larger than the sum of its proper divisors (72634).

74912 is a wasteful number, since it uses less digits than its factorization.

74912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351 (or 2343 counting only the distinct ones).

The product of its digits is 504, while the sum is 23.

The square root of 74912 is about 273.7005663129. The cubic root of 74912 is about 42.1551330156.

The spelling of 74912 in words is "seventy-four thousand, nine hundred twelve".