79996678 has 16 divisors (see below), whose sum is σ = 124084224. Its totient is φ = 38639880.

The previous prime is 79996673. The next prime is 79996687. The reversal of 79996678 is 87669997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79996673) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 66801 + ... + 67987.

It is an arithmetic number, because the mean of its divisors is an integer number (7755264).

Almost surely, 2^79996678 is an apocalyptic number.

79996678 is a deficient number, since it is larger than the sum of its proper divisors (44087546).

79996678 is a wasteful number, since it uses less digits than its factorization.

79996678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307.

The product of its digits is 10287648, while the sum is 61.

The square root of 79996678 is about 8944.0862026257. The cubic root of 79996678 is about 430.8809737305.

The spelling of 79996678 in words is "seventy-nine million, nine hundred ninety-six thousand, six hundred seventy-eight".