71121716 has 24 divisors (see below), whose sum is σ = 130225536. Its totient is φ = 33951680.

The previous prime is 71121709. The next prime is 71121797. The reversal of 71121716 is 61712117.

It is a congruent number.

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, 3095 + ... + 12321.

It is an arithmetic number, because the mean of its divisors is an integer number (5426064).

Almost surely, 2^71121716 is an apocalyptic number.

It is an amenable number.

71121716 is a deficient number, since it is larger than the sum of its proper divisors (59103820).

71121716 is a wasteful number, since it uses less digits than its factorization.

71121716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9319 (or 9317 counting only the distinct ones).

The product of its digits is 588, while the sum is 26.

The square root of 71121716 is about 8433.3691962347. The cubic root of 71121716 is about 414.3182613465.

The spelling of 71121716 in words is "seventy-one million, one hundred twenty-one thousand, seven hundred sixteen".