79869086 has 16 divisors (see below), whose sum is σ = 131483520. Its totient is φ = 36085080.

The previous prime is 79869037. The next prime is 79869089. The reversal of 79869086 is 68096897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79869089) 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 7 ways as a sum of consecutive naturals, for example, 7196 + ... + 14543.

It is an arithmetic number, because the mean of its divisors is an integer number (8217720).

Almost surely, 2^79869086 is an apocalyptic number.

79869086 is a deficient number, since it is larger than the sum of its proper divisors (51614434).

79869086 is a wasteful number, since it uses less digits than its factorization.

79869086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21919.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The square root of 79869086 is about 8936.9505984983. The cubic root of 79869086 is about 430.6517716298.

The spelling of 79869086 in words is "seventy-nine million, eight hundred sixty-nine thousand, eighty-six".