74985723 has 32 divisors (see below), whose sum is σ = 117561600. Its totient is φ = 47107008.

The previous prime is 74985719. The next prime is 74985739. The reversal of 74985723 is 32758947.

74985723 is a `hidden beast` number, since 74 + 9 + 8 + 572 + 3 = 666.

It is not a de Polignac number, because 74985723 - 2² = 74985719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74985763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160336 + ... + 160802.

It is an arithmetic number, because the mean of its divisors is an integer number (3673800).

Almost surely, 2^74985723 is an apocalyptic number.

74985723 is a deficient number, since it is larger than the sum of its proper divisors (42575877).

74985723 is a wasteful number, since it uses less digits than its factorization.

74985723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 802 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 74985723 is about 8659.4297156337. The cubic root of 74985723 is about 421.6895716457.

The spelling of 74985723 in words is "seventy-four million, nine hundred eighty-five thousand, seven hundred twenty-three".