71872432 has 20 divisors (see below), whose sum is σ = 139958800. Its totient is φ = 35754048.

The previous prime is 71872429. The next prime is 71872453. The reversal of 71872432 is 23427817.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8103 + ... + 14470.

It is an arithmetic number, because the mean of its divisors is an integer number (6997940).

Almost surely, 2^71872432 is an apocalyptic number.

It is an amenable number.

71872432 is a deficient number, since it is larger than the sum of its proper divisors (68086368).

71872432 is a wasteful number, since it uses less digits than its factorization.

71872432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22780 (or 22774 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 71872432 is about 8477.7610251764. The cubic root of 71872432 is about 415.7709229413.

The spelling of 71872432 in words is "seventy-one million, eight hundred seventy-two thousand, four hundred thirty-two".