74688938 has 4 divisors (see below), whose sum is σ = 112033410. Its totient is φ = 37344468.

The previous prime is 74688907. The next prime is 74688953. The reversal of 74688938 is 83988647.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 74011609 + 677329 = 8603^2 + 823^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74688938.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18672233 + ... + 18672236.

Almost surely, 2^74688938 is an apocalyptic number.

74688938 is a deficient number, since it is larger than the sum of its proper divisors (37344472).

74688938 is a wasteful number, since it uses less digits than its factorization.

74688938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37344471.

The product of its digits is 2322432, while the sum is 53.

The square root of 74688938 is about 8642.2762047970. The cubic root of 74688938 is about 421.1325028693.

The spelling of 74688938 in words is "seventy-four million, six hundred eighty-eight thousand, nine hundred thirty-eight".