79864299 has 10 divisors (see below), whose sum is σ = 119303580. Its totient is φ = 53242812.

The previous prime is 79864297. The next prime is 79864307. The reversal of 79864299 is 99246897.

It is not a de Polignac number, because 79864299 - 2¹ = 79864297 is a prime.

It is a super-2 number, since 2×79864299² = 12756612509522802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79864297) 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 9 ways as a sum of consecutive naturals, for example, 492909 + ... + 493070.

It is an arithmetic number, because the mean of its divisors is an integer number (11930358).

Almost surely, 2^79864299 is an apocalyptic number.

79864299 is a deficient number, since it is larger than the sum of its proper divisors (39439281).

79864299 is an equidigital number, since it uses as much as digits as its factorization.

79864299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985991 (or 985982 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 54.

The square root of 79864299 is about 8936.6827738261. The cubic root of 79864299 is about 430.6431676700.

The spelling of 79864299 in words is "seventy-nine million, eight hundred sixty-four thousand, two hundred ninety-nine".