79085047 has 4 divisors (see below), whose sum is σ = 79542360. Its totient is φ = 78627736.

The previous prime is 79085009. The next prime is 79085053. The reversal of 79085047 is 74058097.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79085047 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79085057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228397 + ... + 228742.

It is an arithmetic number, because the mean of its divisors is an integer number (19885590).

Almost surely, 2^79085047 is an apocalyptic number.

79085047 is a deficient number, since it is larger than the sum of its proper divisors (457313).

79085047 is a wasteful number, since it uses less digits than its factorization.

79085047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457312.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 79085047 is about 8892.9773979247. The cubic root of 79085047 is about 429.2379634757.

The spelling of 79085047 in words is "seventy-nine million, eighty-five thousand, forty-seven".