79406513 has 2 divisors, whose sum is σ = 79406514. Its totient is φ = 79406512.

The previous prime is 79406497. The next prime is 79406539. The reversal of 79406513 is 31560497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72046144 + 7360369 = 8488^2 + 2713^2 .

It is a cyclic number.

It is not a de Polignac number, because 79406513 - 2⁴ = 79406497 is a prime.

It is not a weakly prime, because it can be changed into another prime (79406543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39703256 + 39703257.

It is an arithmetic number, because the mean of its divisors is an integer number (39703257).

Almost surely, 2^79406513 is an apocalyptic number.

It is an amenable number.

79406513 is a deficient number, since it is larger than the sum of its proper divisors (1).

79406513 is an equidigital number, since it uses as much as digits as its factorization.

79406513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 79406513 is about 8911.0332173099. The cubic root of 79406513 is about 429.8187680474.

The spelling of 79406513 in words is "seventy-nine million, four hundred six thousand, five hundred thirteen".