80190979 has 4 divisors (see below), whose sum is σ = 87481080. Its totient is φ = 72900880.

The previous prime is 80190941. The next prime is 80190983. The reversal of 80190979 is 97909108.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80190979 - 2¹¹ = 80188931 is a prime.

It is a super-2 number, since 2×80190979² = 12861186225956882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80190179) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3645034 + ... + 3645055.

It is an arithmetic number, because the mean of its divisors is an integer number (21870270).

Almost surely, 2^80190979 is an apocalyptic number.

80190979 is a deficient number, since it is larger than the sum of its proper divisors (7290101).

80190979 is a wasteful number, since it uses less digits than its factorization.

80190979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7290100.

The product of its (nonzero) digits is 40824, while the sum is 43.

The square root of 80190979 is about 8954.9415966828. The cubic root of 80190979 is about 431.2295420107.

The spelling of 80190979 in words is "eighty million, one hundred ninety thousand, nine hundred seventy-nine".