79316047 has 4 divisors (see below), whose sum is σ = 79429896. Its totient is φ = 79202200.

The previous prime is 79316021. The next prime is 79316053. The reversal of 79316047 is 74061397.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79316047 - 2⁷ = 79315919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79315997 and 79316015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79316057) 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 3 ways as a sum of consecutive naturals, for example, 55873 + ... + 57274.

It is an arithmetic number, because the mean of its divisors is an integer number (19857474).

Almost surely, 2^79316047 is an apocalyptic number.

79316047 is a deficient number, since it is larger than the sum of its proper divisors (113849).

79316047 is a wasteful number, since it uses less digits than its factorization.

79316047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113848.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 79316047 is about 8905.9557039096. The cubic root of 79316047 is about 429.6554785006.

The spelling of 79316047 in words is "seventy-nine million, three hundred sixteen thousand, forty-seven".