79299397 has 2 divisors, whose sum is σ = 79299398. Its totient is φ = 79299396.

The previous prime is 79299383. The next prime is 79299401. The reversal of 79299397 is 79399297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59505796 + 19793601 = 7714^2 + 4449^2 .

It is an emirp because it is prime and its reverse (79399297) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79299397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79299347) 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, 39649698 + 39649699.

It is an arithmetic number, because the mean of its divisors is an integer number (39649699).

Almost surely, 2^79299397 is an apocalyptic number.

It is an amenable number.

79299397 is a deficient number, since it is larger than the sum of its proper divisors (1).

79299397 is an equidigital number, since it uses as much as digits as its factorization.

79299397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1928934, while the sum is 55.

The square root of 79299397 is about 8905.0208871176. The cubic root of 79299397 is about 429.6254120150.

The spelling of 79299397 in words is "seventy-nine million, two hundred ninety-nine thousand, three hundred ninety-seven".