79969967 has 32 divisors (see below), whose sum is σ = 103832064. Its totient is φ = 59788800.

The previous prime is 79969961. The next prime is 79969969. The reversal of 79969967 is 76996997.

It is a cyclic number.

It is not a de Polignac number, because 79969967 - 2⁸ = 79969711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79969961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230288 + ... + 230634.

It is an arithmetic number, because the mean of its divisors is an integer number (3244752).

Almost surely, 2^79969967 is an apocalyptic number.

79969967 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

79969967 is a deficient number, since it is larger than the sum of its proper divisors (23862097).

79969967 is a wasteful number, since it uses less digits than its factorization.

79969967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479.

The product of its digits is 11573604, while the sum is 62.

The square root of 79969967 is about 8942.5928566608. The cubic root of 79969967 is about 430.8330111433.

The spelling of 79969967 in words is "seventy-nine million, nine hundred sixty-nine thousand, nine hundred sixty-seven".