71883980 has 36 divisors (see below), whose sum is σ = 175604688. Its totient is φ = 24645600.

The previous prime is 71883979. The next prime is 71884013. The reversal of 71883980 is 8938817.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35696 + ... + 37655.

It is an arithmetic number, because the mean of its divisors is an integer number (4877908).

Almost surely, 2^71883980 is an apocalyptic number.

71883980 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

71883980 is an abundant number, since it is smaller than the sum of its proper divisors (103720708).

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

71883980 is a wasteful number, since it uses less digits than its factorization.

71883980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73374 (or 73365 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 71883980 is about 8478.4420738718. The cubic root of 71883980 is about 415.7931895479.

The spelling of 71883980 in words is "seventy-one million, eight hundred eighty-three thousand, nine hundred eighty".