79292489 has 2 divisors, whose sum is σ = 79292490. Its totient is φ = 79292488.

The previous prime is 79292441. The next prime is 79292531. The reversal of 79292489 is 98429297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71910400 + 7382089 = 8480^2 + 2717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79292489 is a prime.

It is not a weakly prime, because it can be changed into another prime (79292419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39646244 + 39646245.

It is an arithmetic number, because the mean of its divisors is an integer number (39646245).

Almost surely, 2^79292489 is an apocalyptic number.

It is an amenable number.

79292489 is a deficient number, since it is larger than the sum of its proper divisors (1).

79292489 is an equidigital number, since it uses as much as digits as its factorization.

79292489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 50.

The square root of 79292489 is about 8904.6330075978. The cubic root of 79292489 is about 429.6129363483.

The spelling of 79292489 in words is "seventy-nine million, two hundred ninety-two thousand, four hundred eighty-nine".