83253979 has 2 divisors, whose sum is σ = 83253980. Its totient is φ = 83253978.

The previous prime is 83253943. The next prime is 83254007. The reversal of 83253979 is 97935238.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83253979 - 2⁷ = 83253851 is a prime.

It is not a weakly prime, because it can be changed into another prime (83203979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41626989 + 41626990.

It is an arithmetic number, because the mean of its divisors is an integer number (41626990).

Almost surely, 2^83253979 is an apocalyptic number.

83253979 is a deficient number, since it is larger than the sum of its proper divisors (1).

83253979 is an equidigital number, since it uses as much as digits as its factorization.

83253979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 46.

The square root of 83253979 is about 9124.3618406988. The cubic root of 83253979 is about 436.6515435458.

The spelling of 83253979 in words is "eighty-three million, two hundred fifty-three thousand, nine hundred seventy-nine".