71959972 has 24 divisors (see below), whose sum is σ = 144320960. Its totient is φ = 30754080.

The previous prime is 71959967. The next prime is 71959981. The reversal of 71959972 is 27995917.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7222 + ... + 14002.

Almost surely, 2^71959972 is an apocalyptic number.

It is an amenable number.

71959972 is an abundant number, since it is smaller than the sum of its proper divisors (72360988).

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

71959972 is a wasteful number, since it uses less digits than its factorization.

71959972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7171 (or 7169 counting only the distinct ones).

The product of its digits is 357210, while the sum is 49.

The square root of 71959972 is about 8482.9223738049. The cubic root of 71959972 is about 415.9396562496.

The spelling of 71959972 in words is "seventy-one million, nine hundred fifty-nine thousand, nine hundred seventy-two".