79245913 has 8 divisors (see below), whose sum is σ = 80276040. Its totient is φ = 78220800.

The previous prime is 79245911. The next prime is 79245919. The reversal of 79245913 is 31954297.

It can be written as a sum of positive squares in 4 ways, for example, as 35844169 + 43401744 = 5987^2 + 6588^2 .

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 79245913 - 2¹ = 79245911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79245911) 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, 38281 + ... + 40297.

It is an arithmetic number, because the mean of its divisors is an integer number (10034505).

Almost surely, 2^79245913 is an apocalyptic number.

It is an amenable number.

79245913 is a deficient number, since it is larger than the sum of its proper divisors (1030127).

79245913 is a wasteful number, since it uses less digits than its factorization.

79245913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507.

The product of its digits is 68040, while the sum is 40.

The square root of 79245913 is about 8902.0173556335. The cubic root of 79245913 is about 429.5288023969.

The spelling of 79245913 in words is "seventy-nine million, two hundred forty-five thousand, nine hundred thirteen".