80881936 has 20 divisors (see below), whose sum is σ = 164957200. Its totient is φ = 38312352.

The previous prime is 80881909. The next prime is 80881973. The reversal of 80881936 is 63918808.

It is a happy number.

It is a super-2 number, since 2×80881936² = 13083775142216192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80881892 and 80881901.

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, 132726 + ... + 133333.

It is an arithmetic number, because the mean of its divisors is an integer number (8247860).

Almost surely, 2^80881936 is an apocalyptic number.

It is an amenable number.

80881936 is an abundant number, since it is smaller than the sum of its proper divisors (84075264).

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

80881936 is a wasteful number, since it uses less digits than its factorization.

80881936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266086 (or 266080 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 80881936 is about 8993.4384970377. The cubic root of 80881936 is about 432.4645494237.

The spelling of 80881936 in words is "eighty million, eight hundred eighty-one thousand, nine hundred thirty-six".