74971398 has 32 divisors (see below), whose sum is σ = 160701696. Its totient is φ = 23256288.

The previous prime is 74971387. The next prime is 74971417. The reversal of 74971398 is 89317947.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2236 + ... + 12447.

It is an arithmetic number, because the mean of its divisors is an integer number (5021928).

Almost surely, 2^74971398 is an apocalyptic number.

74971398 is an abundant number, since it is smaller than the sum of its proper divisors (85730298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74971398 is a wasteful number, since it uses less digits than its factorization.

74971398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14748.

The product of its digits is 381024, while the sum is 48.

The square root of 74971398 is about 8658.6025431359. The cubic root of 74971398 is about 421.6627172545.

The spelling of 74971398 in words is "seventy-four million, nine hundred seventy-one thousand, three hundred ninety-eight".