79168513 has 4 divisors (see below), whose sum is σ = 81722368. Its totient is φ = 76614660.

The previous prime is 79168489. The next prime is 79168517. The reversal of 79168513 is 31586197.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79168513 - 2¹³ = 79160321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79168517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276881 + ... + 1276942.

It is an arithmetic number, because the mean of its divisors is an integer number (20430592).

Almost surely, 2^79168513 is an apocalyptic number.

It is an amenable number.

79168513 is a deficient number, since it is larger than the sum of its proper divisors (2553855).

79168513 is a wasteful number, since it uses less digits than its factorization.

79168513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553854.

The product of its digits is 45360, while the sum is 40.

The square root of 79168513 is about 8897.6689643974. The cubic root of 79168513 is about 429.3889156501.

The spelling of 79168513 in words is "seventy-nine million, one hundred sixty-eight thousand, five hundred thirteen".