80107920 has 80 divisors (see below), whose sum is σ = 275934720. Its totient is φ = 21361536.

The previous prime is 80107903. The next prime is 80107949. The reversal of 80107920 is 2970108.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16384 + ... + 20703.

It is an arithmetic number, because the mean of its divisors is an integer number (3449184).

Almost surely, 2^80107920 is an apocalyptic number.

80107920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80107920 is an abundant number, since it is smaller than the sum of its proper divisors (195826800).

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

80107920 is a wasteful number, since it uses less digits than its factorization.

80107920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37109 (or 37097 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 80107920 is about 8950.3027881743. The cubic root of 80107920 is about 431.0806064394.

The spelling of 80107920 in words is "eighty million, one hundred seven thousand, nine hundred twenty".