80938788 has 72 divisors (see below), whose sum is σ = 221205600. Its totient is φ = 22966272.

The previous prime is 80938787. The next prime is 80938859. The reversal of 80938788 is 88783908.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 80938788.

It is not an unprimeable number, because it can be changed into a prime (80938787) 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 23 ways as a sum of consecutive naturals, for example, 104868 + ... + 105636.

It is an arithmetic number, because the mean of its divisors is an integer number (3072300).

Almost surely, 2^80938788 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 80938788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110602800).

80938788 is an abundant number, since it is smaller than the sum of its proper divisors (140266812).

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

80938788 is a wasteful number, since it uses less digits than its factorization.

80938788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969 (or 960 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 80938788 is about 8996.5986906164. The cubic root of 80938788 is about 432.5658522914.

The spelling of 80938788 in words is "eighty million, nine hundred thirty-eight thousand, seven hundred eighty-eight".