79210993 has 2 divisors, whose sum is σ = 79210994. Its totient is φ = 79210992.

The previous prime is 79210961. The next prime is 79210997. The reversal of 79210993 is 39901297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43784689 + 35426304 = 6617^2 + 5952^2 .

It is a cyclic number.

It is not a de Polignac number, because 79210993 - 2⁵ = 79210961 is a prime.

It is not a weakly prime, because it can be changed into another prime (79210997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39605496 + 39605497.

It is an arithmetic number, because the mean of its divisors is an integer number (39605497).

Almost surely, 2^79210993 is an apocalyptic number.

It is an amenable number.

79210993 is a deficient number, since it is larger than the sum of its proper divisors (1).

79210993 is an equidigital number, since it uses as much as digits as its factorization.

79210993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 79210993 is about 8900.0557863420. The cubic root of 79210993 is about 429.4657019841.

The spelling of 79210993 in words is "seventy-nine million, two hundred ten thousand, nine hundred ninety-three".