79291193 has 2 divisors, whose sum is σ = 79291194. Its totient is φ = 79291192.

The previous prime is 79291129. The next prime is 79291207. The reversal of 79291193 is 39119297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67436944 + 11854249 = 8212^2 + 3443^2 .

It is a cyclic number.

It is not a de Polignac number, because 79291193 - 2⁶ = 79291129 is a prime.

It is a super-3 number, since 3×79291193³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79291193.

It is not a weakly prime, because it can be changed into another prime (79296193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39645596 + 39645597.

It is an arithmetic number, because the mean of its divisors is an integer number (39645597).

Almost surely, 2^79291193 is an apocalyptic number.

It is an amenable number.

79291193 is a deficient number, since it is larger than the sum of its proper divisors (1).

79291193 is an equidigital number, since it uses as much as digits as its factorization.

79291193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 41.

The square root of 79291193 is about 8904.5602361936. The cubic root of 79291193 is about 429.6105957256.

The spelling of 79291193 in words is "seventy-nine million, two hundred ninety-one thousand, one hundred ninety-three".