79251673 has 2 divisors, whose sum is σ = 79251674. Its totient is φ = 79251672.

The previous prime is 79251659. The next prime is 79251701. The reversal of 79251673 is 37615297.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76965529 + 2286144 = 8773^2 + 1512^2 .

It is a cyclic number.

It is not a de Polignac number, because 79251673 - 2¹³ = 79243481 is a prime.

It is not a weakly prime, because it can be changed into another prime (79291673) 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, 39625836 + 39625837.

It is an arithmetic number, because the mean of its divisors is an integer number (39625837).

Almost surely, 2^79251673 is an apocalyptic number.

It is an amenable number.

79251673 is a deficient number, since it is larger than the sum of its proper divisors (1).

79251673 is an equidigital number, since it uses as much as digits as its factorization.

79251673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 40.

The square root of 79251673 is about 8902.3408719280. The cubic root of 79251673 is about 429.5392089313.

The spelling of 79251673 in words is "seventy-nine million, two hundred fifty-one thousand, six hundred seventy-three".