71964512 has 24 divisors (see below), whose sum is σ = 145138392. Its totient is φ = 35104000.

The previous prime is 71964511. The next prime is 71964517. The reversal of 71964512 is 21546917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71964511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26114 + ... + 28737.

It is an arithmetic number, because the mean of its divisors is an integer number (6047433).

Almost surely, 2^71964512 is an apocalyptic number.

It is an amenable number.

71964512 is an abundant number, since it is smaller than the sum of its proper divisors (73173880).

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

71964512 is a wasteful number, since it uses less digits than its factorization.

71964512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54902 (or 54894 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 71964512 is about 8483.1899660446. The cubic root of 71964512 is about 415.9484033640.

The spelling of 71964512 in words is "seventy-one million, nine hundred sixty-four thousand, five hundred twelve".