80973879 has 16 divisors (see below), whose sum is σ = 124484352. Its totient is φ = 45859968.

The previous prime is 80973853. The next prime is 80973881. The reversal of 80973879 is 97837908.

It is a happy number.

It is not a de Polignac number, because 80973879 - 2⁷ = 80973751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80973899) 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 15 ways as a sum of consecutive naturals, for example, 14689 + ... + 19434.

It is an arithmetic number, because the mean of its divisors is an integer number (7780272).

Almost surely, 2^80973879 is an apocalyptic number.

80973879 is a deficient number, since it is larger than the sum of its proper divisors (43510473).

80973879 is a wasteful number, since it uses less digits than its factorization.

80973879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34246.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 80973879 is about 8998.5487163209. The cubic root of 80973879 is about 432.6283562140.

The spelling of 80973879 in words is "eighty million, nine hundred seventy-three thousand, eight hundred seventy-nine".