71499216 has 40 divisors (see below), whose sum is σ = 185335360. Its totient is φ = 23751936.

The previous prime is 71499191. The next prime is 71499221. The reversal of 71499216 is 61299417.

It is a super-2 number, since 2×71499216² = 10224275777229312, which contains 22 as substring.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 12645 + ... + 17403.

It is an arithmetic number, because the mean of its divisors is an integer number (4633384).

Almost surely, 2^71499216 is an apocalyptic number.

It is an amenable number.

71499216 is an abundant number, since it is smaller than the sum of its proper divisors (113836144).

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

71499216 is a wasteful number, since it uses less digits than its factorization.

71499216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083 (or 5077 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 71499216 is about 8455.7209036250. The cubic root of 71499216 is about 415.0500080058.

The spelling of 71499216 in words is "seventy-one million, four hundred ninety-nine thousand, two hundred sixteen".