71889472 has 28 divisors (see below), whose sum is σ = 143231616. Its totient is φ = 35799680.

The previous prime is 71889469. The next prime is 71889487. The reversal of 71889472 is 27498817.

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, 14697 + ... + 18967.

Almost surely, 2^71889472 is an apocalyptic number.

It is an amenable number.

71889472 is a deficient number, since it is larger than the sum of its proper divisors (71342144).

71889472 is a wasteful number, since it uses less digits than its factorization.

71889472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4546 (or 4536 counting only the distinct ones).

The product of its digits is 225792, while the sum is 46.

The square root of 71889472 is about 8478.7659479431. The cubic root of 71889472 is about 415.8037782680.

It can be divided in two parts, 71889 and 472, that added together give a square (72361 = 269²).

The spelling of 71889472 in words is "seventy-one million, eight hundred eighty-nine thousand, four hundred seventy-two".