80997896 has 32 divisors (see below), whose sum is σ = 177608640. Its totient is φ = 33905088.

The previous prime is 80997887. The next prime is 80997923. The reversal of 80997896 is 69879908.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14411 + ... + 19226.

It is an arithmetic number, because the mean of its divisors is an integer number (5550270).

Almost surely, 2^80997896 is an apocalyptic number.

80997896 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

80997896 is an abundant number, since it is smaller than the sum of its proper divisors (96610744).

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

80997896 is a wasteful number, since it uses less digits than its factorization.

80997896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33693 (or 33689 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 56.

The square root of 80997896 is about 8999.8831103520. The cubic root of 80997896 is about 432.6711247720.

The spelling of 80997896 in words is "eighty million, nine hundred ninety-seven thousand, eight hundred ninety-six".