71919716 has 24 divisors (see below), whose sum is σ = 137622240. Its totient is φ = 32614400.

The previous prime is 71919709. The next prime is 71919737. The reversal of 71919716 is 61791917.

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, 19940 + ... + 23268.

It is an arithmetic number, because the mean of its divisors is an integer number (5734260).

Almost surely, 2^71919716 is an apocalyptic number.

It is an amenable number.

71919716 is a deficient number, since it is larger than the sum of its proper divisors (65702524).

71919716 is a wasteful number, since it uses less digits than its factorization.

71919716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835 (or 3833 counting only the distinct ones).

The product of its digits is 23814, while the sum is 41.

The square root of 71919716 is about 8480.5492746638. The cubic root of 71919716 is about 415.8620798339.

The spelling of 71919716 in words is "seventy-one million, nine hundred nineteen thousand, seven hundred sixteen".