79766855 has 24 divisors (see below), whose sum is σ = 113467392. Its totient is φ = 53656512.

The previous prime is 79766837. The next prime is 79766891. The reversal of 79766855 is 55866797.

It is a happy number.

It is not a de Polignac number, because 79766855 - 2²² = 75572551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79766797 and 79766806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9914 + ... + 16056.

It is an arithmetic number, because the mean of its divisors is an integer number (4727808).

Almost surely, 2^79766855 is an apocalyptic number.

79766855 is a deficient number, since it is larger than the sum of its proper divisors (33700537).

79766855 is a wasteful number, since it uses less digits than its factorization.

79766855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6215 (or 6208 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 53.

The square root of 79766855 is about 8931.2291987162. The cubic root of 79766855 is about 430.4679509929.

The spelling of 79766855 in words is "seventy-nine million, seven hundred sixty-six thousand, eight hundred fifty-five".