80795920 has 40 divisors (see below), whose sum is σ = 193916160. Its totient is φ = 31274880.

The previous prime is 80795899. The next prime is 80795927. The reversal of 80795920 is 2959708.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (80795927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13810 + ... + 18769.

It is an arithmetic number, because the mean of its divisors is an integer number (4847904).

Almost surely, 2^80795920 is an apocalyptic number.

80795920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80795920 is an abundant number, since it is smaller than the sum of its proper divisors (113120240).

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

80795920 is a wasteful number, since it uses less digits than its factorization.

80795920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32623 (or 32617 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 80795920 is about 8988.6550718114. The cubic root of 80795920 is about 432.3111898191.

The spelling of 80795920 in words is "eighty million, seven hundred ninety-five thousand, nine hundred twenty".