79824969 has 36 divisors (see below), whose sum is σ = 138478080. Its totient is φ = 44135280.

The previous prime is 79824959. The next prime is 79825003. The reversal of 79824969 is 96942897.

79824969 is a `hidden beast` number, since 79 + 82 + 496 + 9 = 666.

It is not a de Polignac number, because 79824969 - 2⁵ = 79824937 is a prime.

It is a super-2 number, since 2×79824969² = 12744051351701922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79824929) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10752 + ... + 16590.

Almost surely, 2^79824969 is an apocalyptic number.

It is an amenable number.

79824969 is a deficient number, since it is larger than the sum of its proper divisors (58653111).

79824969 is a wasteful number, since it uses less digits than its factorization.

79824969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5890 (or 5880 counting only the distinct ones).

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

The square root of 79824969 is about 8934.4820219193. The cubic root of 79824969 is about 430.5724645020.

The spelling of 79824969 in words is "seventy-nine million, eight hundred twenty-four thousand, nine hundred sixty-nine".