71958984 has 16 divisors (see below), whose sum is σ = 179897520. Its totient is φ = 23986320.

The previous prime is 71958961. The next prime is 71959003. The reversal of 71958984 is 48985917.

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, 1499122 + ... + 1499169.

It is an arithmetic number, because the mean of its divisors is an integer number (11243595).

Almost surely, 2^71958984 is an apocalyptic number.

It is an amenable number.

71958984 is an abundant number, since it is smaller than the sum of its proper divisors (107938536).

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

71958984 is a wasteful number, since it uses less digits than its factorization.

71958984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998300 (or 2998296 counting only the distinct ones).

The product of its digits is 725760, while the sum is 51.

The square root of 71958984 is about 8482.8641389568. The cubic root of 71958984 is about 415.9377526438.

The spelling of 71958984 in words is "seventy-one million, nine hundred fifty-eight thousand, nine hundred eighty-four".