79243369 has 2 divisors, whose sum is σ = 79243370. Its totient is φ = 79243368.

The previous prime is 79243361. The next prime is 79243421. The reversal of 79243369 is 96334297.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43099225 + 36144144 = 6565^2 + 6012^2 .

It is a cyclic number.

It is not a de Polignac number, because 79243369 - 2³ = 79243361 is a prime.

It is a super-2 number, since 2×79243369² = 12559023060940322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79243361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39621684 + 39621685.

It is an arithmetic number, because the mean of its divisors is an integer number (39621685).

Almost surely, 2^79243369 is an apocalyptic number.

It is an amenable number.

79243369 is a deficient number, since it is larger than the sum of its proper divisors (1).

79243369 is an equidigital number, since it uses as much as digits as its factorization.

79243369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 43.

The square root of 79243369 is about 8901.8744655269. The cubic root of 79243369 is about 429.5242060170.

The spelling of 79243369 in words is "seventy-nine million, two hundred forty-three thousand, three hundred sixty-nine".