71705164 has 24 divisors (see below), whose sum is σ = 133585200. Its totient is φ = 33580800.

The previous prime is 71705159. The next prime is 71705173. The reversal of 71705164 is 46150717.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1464 + ... + 12064.

It is an arithmetic number, because the mean of its divisors is an integer number (5566050).

Almost surely, 2^71705164 is an apocalyptic number.

It is an amenable number.

71705164 is a deficient number, since it is larger than the sum of its proper divisors (61880036).

71705164 is a wasteful number, since it uses less digits than its factorization.

71705164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10713 (or 10711 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 71705164 is about 8467.8901740634. The cubic root of 71705164 is about 415.4481325507.

The spelling of 71705164 in words is "seventy-one million, seven hundred five thousand, one hundred sixty-four".