71952172 has 6 divisors (see below), whose sum is σ = 125916308. Its totient is φ = 35976084.

The previous prime is 71952169. The next prime is 71952191. The reversal of 71952172 is 27125917.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8994018 + ... + 8994025.

Almost surely, 2^71952172 is an apocalyptic number.

It is an amenable number.

71952172 is a deficient number, since it is larger than the sum of its proper divisors (53964136).

71952172 is a wasteful number, since it uses less digits than its factorization.

71952172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17988047 (or 17988045 counting only the distinct ones).

The product of its digits is 8820, while the sum is 34.

The square root of 71952172 is about 8482.4626141233. The cubic root of 71952172 is about 415.9246273085.

The spelling of 71952172 in words is "seventy-one million, nine hundred fifty-two thousand, one hundred seventy-two".