71894764 has 6 divisors (see below), whose sum is σ = 125815844. Its totient is φ = 35947380.

The previous prime is 71894687. The next prime is 71894789. The reversal of 71894764 is 46749817.

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 as a sum of consecutive naturals, namely, 8986842 + ... + 8986849.

Almost surely, 2^71894764 is an apocalyptic number.

It is an amenable number.

71894764 is a deficient number, since it is larger than the sum of its proper divisors (53921080).

71894764 is a wasteful number, since it uses less digits than its factorization.

71894764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17973695 (or 17973693 counting only the distinct ones).

The product of its digits is 338688, while the sum is 46.

The square root of 71894764 is about 8479.0780159166. The cubic root of 71894764 is about 415.8139808728.

The spelling of 71894764 in words is "seventy-one million, eight hundred ninety-four thousand, seven hundred sixty-four".