79872433 has 2 divisors, whose sum is σ = 79872434. Its totient is φ = 79872432.

The previous prime is 79872421. The next prime is 79872437. The reversal of 79872433 is 33427897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79780624 + 91809 = 8932^2 + 303^2 .

It is a cyclic number.

It is not a de Polignac number, because 79872433 - 2⁹ = 79871921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79872433.

It is not a weakly prime, because it can be changed into another prime (79872437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39936216 + 39936217.

It is an arithmetic number, because the mean of its divisors is an integer number (39936217).

Almost surely, 2^79872433 is an apocalyptic number.

It is an amenable number.

79872433 is a deficient number, since it is larger than the sum of its proper divisors (1).

79872433 is an equidigital number, since it uses as much as digits as its factorization.

79872433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 43.

The square root of 79872433 is about 8937.1378528028. The cubic root of 79872433 is about 430.6577871878.

The spelling of 79872433 in words is "seventy-nine million, eight hundred seventy-two thousand, four hundred thirty-three".