71332772 has 12 divisors (see below), whose sum is σ = 142665600. Its totient is φ = 30571176.

The previous prime is 71332769. The next prime is 71332841. The reversal of 71332772 is 27723317.

71332772 is an admirable number.

It is a super-2 number, since 2×71332772² = 10176728722407968, which contains 22 as substring.

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, 1273772 + ... + 1273827.

It is an arithmetic number, because the mean of its divisors is an integer number (11888800).

Almost surely, 2^71332772 is an apocalyptic number.

It is an amenable number.

71332772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71332772 is a wasteful number, since it uses less digits than its factorization.

71332772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547610 (or 2547608 counting only the distinct ones).

The product of its digits is 12348, while the sum is 32.

The square root of 71332772 is about 8445.8730750586. The cubic root of 71332772 is about 414.7276909095.

The spelling of 71332772 in words is "seventy-one million, three hundred thirty-two thousand, seven hundred seventy-two".