71508964 has 12 divisors (see below), whose sum is σ = 125703424. Its totient is φ = 35593704.

The previous prime is 71508959. The next prime is 71508977. The reversal of 71508964 is 46980517.

It is a super-2 number, since 2×71508964² = 10227063864706592, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39192 + ... + 40975.

Almost surely, 2^71508964 is an apocalyptic number.

It is an amenable number.

71508964 is a deficient number, since it is larger than the sum of its proper divisors (54194460).

71508964 is a wasteful number, since it uses less digits than its factorization.

71508964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80394 (or 80392 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 71508964 is about 8456.2972984634. The cubic root of 71508964 is about 415.0688693950.

The spelling of 71508964 in words is "seventy-one million, five hundred eight thousand, nine hundred sixty-four".