74686923 has 6 divisors (see below), whose sum is σ = 107881124. Its totient is φ = 49791276.

The previous prime is 74686907. The next prime is 74686939. The reversal of 74686923 is 32968647.

It is an interprime number because it is at equal distance from previous prime (74686907) and next prime (74686939).

It is not a de Polignac number, because 74686923 - 2⁴ = 74686907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74686903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4149265 + ... + 4149282.

Almost surely, 2^74686923 is an apocalyptic number.

74686923 is a deficient number, since it is larger than the sum of its proper divisors (33194201).

74686923 is a wasteful number, since it uses less digits than its factorization.

74686923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8298553 (or 8298550 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 74686923 is about 8642.1596259268. The cubic root of 74686923 is about 421.1287156524.

The spelling of 74686923 in words is "seventy-four million, six hundred eighty-six thousand, nine hundred twenty-three".