80979097 has 4 divisors (see below), whose sum is σ = 80997120. Its totient is φ = 80961076.

The previous prime is 80979089. The next prime is 80979103. The reversal of 80979097 is 79097908.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 80979097 - 2³ = 80979089 is a prime.

It is a super-2 number, since 2×80979097² = 13115228301870818, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80979097.

It is not an unprimeable number, because it can be changed into a prime (80979497) 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, 3804 + ... + 13282.

It is an arithmetic number, because the mean of its divisors is an integer number (20249280).

Almost surely, 2^80979097 is an apocalyptic number.

It is an amenable number.

80979097 is a deficient number, since it is larger than the sum of its proper divisors (18023).

80979097 is an equidigital number, since it uses as much as digits as its factorization.

80979097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18022.

The product of its (nonzero) digits is 285768, while the sum is 49.

The square root of 80979097 is about 8998.8386472922. The cubic root of 80979097 is about 432.6376489485.

The spelling of 80979097 in words is "eighty million, nine hundred seventy-nine thousand, ninety-seven".