80407956 has 48 divisors (see below), whose sum is σ = 194780096. Its totient is φ = 25795584.

The previous prime is 80407907. The next prime is 80407961. The reversal of 80407956 is 65970408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42135 + ... + 44001.

Almost surely, 2^80407956 is an apocalyptic number.

It is an amenable number.

80407956 is an abundant number, since it is smaller than the sum of its proper divisors (114372140).

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

80407956 is a wasteful number, since it uses less digits than its factorization.

80407956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008 (or 2006 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 80407956 is about 8967.0483437974. The cubic root of 80407956 is about 431.6181253255.

The spelling of 80407956 in words is "eighty million, four hundred seven thousand, nine hundred fifty-six".