79123249 has 2 divisors, whose sum is σ = 79123250. Its totient is φ = 79123248.

The previous prime is 79123237. The next prime is 79123259. The reversal of 79123249 is 94232197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53802225 + 25321024 = 7335^2 + 5032^2 .

It is an emirp because it is prime and its reverse (94232197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79123249 - 2⁵ = 79123217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79123259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39561624 + 39561625.

It is an arithmetic number, because the mean of its divisors is an integer number (39561625).

Almost surely, 2^79123249 is an apocalyptic number.

It is an amenable number.

79123249 is a deficient number, since it is larger than the sum of its proper divisors (1).

79123249 is an equidigital number, since it uses as much as digits as its factorization.

79123249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 79123249 is about 8895.1250131744. The cubic root of 79123249 is about 429.3070667584.

The spelling of 79123249 in words is "seventy-nine million, one hundred twenty-three thousand, two hundred forty-nine".