79104439 has 2 divisors, whose sum is σ = 79104440. Its totient is φ = 79104438.

The previous prime is 79104419. The next prime is 79104469. The reversal of 79104439 is 93440197.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79104439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79104398 and 79104407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79104419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39552219 + 39552220.

It is an arithmetic number, because the mean of its divisors is an integer number (39552220).

Almost surely, 2^79104439 is an apocalyptic number.

79104439 is a deficient number, since it is larger than the sum of its proper divisors (1).

79104439 is an equidigital number, since it uses as much as digits as its factorization.

79104439 is an odious number, because the sum of its binary digits is odd.

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

The square root of 79104439 is about 8894.0676296057. The cubic root of 79104439 is about 429.2730442849.

The spelling of 79104439 in words is "seventy-nine million, one hundred four thousand, four hundred thirty-nine".