71654964 has 24 divisors (see below), whose sum is σ = 167670720. Its totient is φ = 23817024.

The previous prime is 71654951. The next prime is 71654971. The reversal of 71654964 is 46945617.

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, 4009 + ... + 12624.

It is an arithmetic number, because the mean of its divisors is an integer number (6986280).

Almost surely, 2^71654964 is an apocalyptic number.

It is an amenable number.

71654964 is an abundant number, since it is smaller than the sum of its proper divisors (96015756).

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

71654964 is a wasteful number, since it uses less digits than its factorization.

71654964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16999 (or 16997 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 71654964 is about 8464.9255165063. The cubic root of 71654964 is about 415.3511596881.

The spelling of 71654964 in words is "seventy-one million, six hundred fifty-four thousand, nine hundred sixty-four".