79243259 has 2 divisors, whose sum is σ = 79243260. Its totient is φ = 79243258.

The previous prime is 79243253. The next prime is 79243261. The reversal of 79243259 is 95234297.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79243259 is a prime.

Together with 79243261, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79243253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39621629 + 39621630.

It is an arithmetic number, because the mean of its divisors is an integer number (39621630).

Almost surely, 2^79243259 is an apocalyptic number.

79243259 is a deficient number, since it is larger than the sum of its proper divisors (1).

79243259 is an equidigital number, since it uses as much as digits as its factorization.

79243259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 41.

The square root of 79243259 is about 8901.8682870508. The cubic root of 79243259 is about 429.5240072719.

The spelling of 79243259 in words is "seventy-nine million, two hundred forty-three thousand, two hundred fifty-nine".