79470913 has 2 divisors, whose sum is σ = 79470914. Its totient is φ = 79470912.

The previous prime is 79470877. The next prime is 79470917. The reversal of 79470913 is 31907497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42601729 + 36869184 = 6527^2 + 6072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79470913 is a prime.

It is not a weakly prime, because it can be changed into another prime (79470917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39735456 + 39735457.

It is an arithmetic number, because the mean of its divisors is an integer number (39735457).

Almost surely, 2^79470913 is an apocalyptic number.

It is an amenable number.

79470913 is a deficient number, since it is larger than the sum of its proper divisors (1).

79470913 is an equidigital number, since it uses as much as digits as its factorization.

79470913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 79470913 is about 8914.6459828756. The cubic root of 79470913 is about 429.9349333673.

The spelling of 79470913 in words is "seventy-nine million, four hundred seventy thousand, nine hundred thirteen".