74985724 has 24 divisors (see below), whose sum is σ = 143515008. Its totient is φ = 33998640.

The previous prime is 74985719. The next prime is 74985739. The reversal of 74985724 is 42758947.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17569 + ... + 21415.

It is an arithmetic number, because the mean of its divisors is an integer number (5979792).

Almost surely, 2^74985724 is an apocalyptic number.

It is an amenable number.

74985724 is a deficient number, since it is larger than the sum of its proper divisors (68529284).

74985724 is a wasteful number, since it uses less digits than its factorization.

74985724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305 (or 4303 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 74985724 is about 8659.4297733742. The cubic root of 74985724 is about 421.6895735202.

The spelling of 74985724 in words is "seventy-four million, nine hundred eighty-five thousand, seven hundred twenty-four".