74973616 has 20 divisors (see below), whose sum is σ = 146622312. Its totient is φ = 37135616.

The previous prime is 74973611. The next prime is 74973617. The reversal of 74973616 is 61637947.

It is a super-2 number, since 2×74973616² = 11242086192230912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74973611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20185 + ... + 23608.

Almost surely, 2^74973616 is an apocalyptic number.

It is an amenable number.

74973616 is a deficient number, since it is larger than the sum of its proper divisors (71648696).

74973616 is a wasteful number, since it uses less digits than its factorization.

74973616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43908 (or 43902 counting only the distinct ones).

The product of its digits is 190512, while the sum is 43.

The square root of 74973616 is about 8658.7306229031. The cubic root of 74973616 is about 421.6668754566. Note that the first 3 decimals are identical.

The spelling of 74973616 in words is "seventy-four million, nine hundred seventy-three thousand, six hundred sixteen".