74384631 has 6 divisors (see below), whose sum is σ = 107444480. Its totient is φ = 49589748.

The previous prime is 74384621. The next prime is 74384633. The reversal of 74384631 is 13648347.

It is not a de Polignac number, because 74384631 - 2⁹ = 74384119 is a prime.

It is a super-2 number, since 2×74384631² = 11066146658012322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74384633) 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, 4132471 + ... + 4132488.

Almost surely, 2^74384631 is an apocalyptic number.

74384631 is a deficient number, since it is larger than the sum of its proper divisors (33059849).

74384631 is a wasteful number, since it uses less digits than its factorization.

74384631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8264965 (or 8264962 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 74384631 is about 8624.6525147394. The cubic root of 74384631 is about 420.5597807972.

The spelling of 74384631 in words is "seventy-four million, three hundred eighty-four thousand, six hundred thirty-one".