80838756 has 48 divisors (see below), whose sum is σ = 211012480. Its totient is φ = 26762400.

The previous prime is 80838743. The next prime is 80838773. The reversal of 80838756 is 65783808.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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, 13830 + ... + 18786.

Almost surely, 2^80838756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80838756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105506240).

80838756 is an abundant number, since it is smaller than the sum of its proper divisors (130173724).

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

80838756 is a wasteful number, since it uses less digits than its factorization.

80838756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121 (or 5113 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 80838756 is about 8991.0375374592. The cubic root of 80838756 is about 432.3875765575.

The spelling of 80838756 in words is "eighty million, eight hundred thirty-eight thousand, seven hundred fifty-six".