80893971 has 24 divisors (see below), whose sum is σ = 121605120. Its totient is φ = 53737992.

The previous prime is 80893961. The next prime is 80893993. The reversal of 80893971 is 17939808.

It is not a de Polignac number, because 80893971 - 2⁶ = 80893907 is a prime.

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 not an unprimeable number, because it can be changed into a prime (80893931) 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, 112150 + ... + 112868.

It is an arithmetic number, because the mean of its divisors is an integer number (5066880).

Almost surely, 2^80893971 is an apocalyptic number.

80893971 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

80893971 is a deficient number, since it is larger than the sum of its proper divisors (40711149).

80893971 is an equidigital number, since it uses as much as digits as its factorization.

80893971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 80893971 is about 8994.1075710712. The cubic root of 80893971 is about 432.4859981879.

The spelling of 80893971 in words is "eighty million, eight hundred ninety-three thousand, nine hundred seventy-one".