79316805 has 8 divisors (see below), whose sum is σ = 126906912. Its totient is φ = 42302288.

The previous prime is 79316801. The next prime is 79316807. The reversal of 79316805 is 50861397.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79316805 - 2² = 79316801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79316801) 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, 2643879 + ... + 2643908.

It is an arithmetic number, because the mean of its divisors is an integer number (15863364).

Almost surely, 2^79316805 is an apocalyptic number.

It is an amenable number.

79316805 is a deficient number, since it is larger than the sum of its proper divisors (47590107).

79316805 is a wasteful number, since it uses less digits than its factorization.

79316805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287795.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 79316805 is about 8905.9982596001. The cubic root of 79316805 is about 429.6568471930.

The spelling of 79316805 in words is "seventy-nine million, three hundred sixteen thousand, eight hundred five".