71424716 has 12 divisors (see below), whose sum is σ = 136356360. Its totient is φ = 32465760.

The previous prime is 71424659. The next prime is 71424721. The reversal of 71424716 is 61742417.

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, 811601 + ... + 811688.

It is an arithmetic number, because the mean of its divisors is an integer number (11363030).

Almost surely, 2^71424716 is an apocalyptic number.

It is an amenable number.

71424716 is a deficient number, since it is larger than the sum of its proper divisors (64931644).

71424716 is a wasteful number, since it uses less digits than its factorization.

71424716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623304 (or 1623302 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

The square root of 71424716 is about 8451.3144539770. The cubic root of 71424716 is about 414.9058014293.

The spelling of 71424716 in words is "seventy-one million, four hundred twenty-four thousand, seven hundred sixteen".