71315904 has 56 divisors (see below), whose sum is σ = 205849728. Its totient is φ = 21610240.

The previous prime is 71315897. The next prime is 71315929. The reversal of 71315904 is 40951317.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14772 + ... + 18995.

It is an arithmetic number, because the mean of its divisors is an integer number (3675888).

Almost surely, 2^71315904 is an apocalyptic number.

It is an amenable number.

71315904 is an abundant number, since it is smaller than the sum of its proper divisors (134533824).

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

71315904 is a wasteful number, since it uses less digits than its factorization.

71315904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33793 (or 33783 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 71315904 is about 8444.8744218017. The cubic root of 71315904 is about 414.6949982308.

The spelling of 71315904 in words is "seventy-one million, three hundred fifteen thousand, nine hundred four".