80079999 has 12 divisors (see below), whose sum is σ = 107923464. Its totient is φ = 52817664.

The previous prime is 80079983. The next prime is 80080001. The reversal of 80079999 is 99997008.

It is not a de Polignac number, because 80079999 - 2⁴ = 80079983 is a prime.

80079999 is a modest number, since divided by 9999 gives 8007 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80079949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26809 + ... + 29645.

It is an arithmetic number, because the mean of its divisors is an integer number (8993622).

Almost surely, 2^80079999 is an apocalyptic number.

80079999 is a deficient number, since it is larger than the sum of its proper divisors (27843465).

80079999 is an equidigital number, since it uses as much as digits as its factorization.

80079999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034 (or 2937 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 51.

The square root of 80079999 is about 8948.7428726051. The cubic root of 80079999 is about 431.0305173418.

It can be divided in two parts, 8007999 and 9, that added together give a palindrome (8008008).

The spelling of 80079999 in words is "eighty million, seventy-nine thousand, nine hundred ninety-nine".