71614864 has 20 divisors (see below), whose sum is σ = 142139340. Its totient is φ = 34933760.

The previous prime is 71614841. The next prime is 71614871. The reversal of 71614864 is 46841617.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4243600 + 67371264 = 2060^2 + 8208^2 .

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, 53929 + ... + 55240.

It is an arithmetic number, because the mean of its divisors is an integer number (7106967).

Almost surely, 2^71614864 is an apocalyptic number.

It is an amenable number.

71614864 is a deficient number, since it is larger than the sum of its proper divisors (70524476).

71614864 is a wasteful number, since it uses less digits than its factorization.

71614864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109218 (or 109212 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 71614864 is about 8462.5565876985. The cubic root of 71614864 is about 415.2736647573.

The spelling of 71614864 in words is "seventy-one million, six hundred fourteen thousand, eight hundred sixty-four".