71631464 has 16 divisors (see below), whose sum is σ = 137433120. Its totient is φ = 34982640.

The previous prime is 71631457. The next prime is 71631473. The reversal of 71631464 is 46413617.

It is a self number, because there is not a number n which added to its sum of digits gives 71631464.

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, 103772 + ... + 104459.

It is an arithmetic number, because the mean of its divisors is an integer number (8589570).

Almost surely, 2^71631464 is an apocalyptic number.

It is an amenable number.

71631464 is a deficient number, since it is larger than the sum of its proper divisors (65801656).

71631464 is a wasteful number, since it uses less digits than its factorization.

71631464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208280 (or 208276 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 71631464 is about 8463.5373219476. The cubic root of 71631464 is about 415.3057484612.

The spelling of 71631464 in words is "seventy-one million, six hundred thirty-one thousand, four hundred sixty-four".