79090047 has 16 divisors (see below), whose sum is σ = 121212000. Its totient is φ = 50908032.

The previous prime is 79090043. The next prime is 79090051. The reversal of 79090047 is 74009097.

It is an interprime number because it is at equal distance from previous prime (79090043) and next prime (79090051).

It is not a de Polignac number, because 79090047 - 2² = 79090043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79089993 and 79090020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79090043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49722 + ... + 51287.

It is an arithmetic number, because the mean of its divisors is an integer number (7575750).

Almost surely, 2^79090047 is an apocalyptic number.

79090047 is a deficient number, since it is larger than the sum of its proper divisors (42121953).

79090047 is a wasteful number, since it uses less digits than its factorization.

79090047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101047 (or 101041 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 79090047 is about 8893.2585141780. The cubic root of 79090047 is about 429.2470091999.

The spelling of 79090047 in words is "seventy-nine million, ninety thousand, forty-seven".