71318964 has 24 divisors (see below), whose sum is σ = 169233120. Its totient is φ = 23369824.

The previous prime is 71318921. The next prime is 71318969. The reversal of 71318964 is 46981317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71318969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49659 + ... + 51074.

It is an arithmetic number, because the mean of its divisors is an integer number (7051380).

Almost surely, 2^71318964 is an apocalyptic number.

It is an amenable number.

71318964 is an abundant number, since it is smaller than the sum of its proper divisors (97914156).

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

71318964 is a wasteful number, since it uses less digits than its factorization.

71318964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100799 (or 100797 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 71318964 is about 8445.0555948436. The cubic root of 71318964 is about 414.7009293461.

The spelling of 71318964 in words is "seventy-one million, three hundred eighteen thousand, nine hundred sixty-four".