74728625 has 16 divisors (see below), whose sum is σ = 95437056. Its totient is φ = 58388400.

The previous prime is 74728607. The next prime is 74728639. The reversal of 74728625 is 52682747.

It is not a de Polignac number, because 74728625 - 2²⁰ = 73680049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1577 + ... + 12326.

It is an arithmetic number, because the mean of its divisors is an integer number (5964816).

Almost surely, 2^74728625 is an apocalyptic number.

It is an amenable number.

74728625 is a deficient number, since it is larger than the sum of its proper divisors (20708431).

74728625 is a wasteful number, since it uses less digits than its factorization.

74728625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13961 (or 13951 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 74728625 is about 8644.5719963455. The cubic root of 74728625 is about 421.2070811877.

The spelling of 74728625 in words is "seventy-four million, seven hundred twenty-eight thousand, six hundred twenty-five".