83799257 has 2 divisors, whose sum is σ = 83799258. Its totient is φ = 83799256.

The previous prime is 83799223. The next prime is 83799263. The reversal of 83799257 is 75299738.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68244121 + 15555136 = 8261^2 + 3944^2 .

It is a cyclic number.

It is not a de Polignac number, because 83799257 - 2⁶ = 83799193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83799757) 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, 41899628 + 41899629.

It is an arithmetic number, because the mean of its divisors is an integer number (41899629).

Almost surely, 2^83799257 is an apocalyptic number.

It is an amenable number.

83799257 is a deficient number, since it is larger than the sum of its proper divisors (1).

83799257 is an equidigital number, since it uses as much as digits as its factorization.

83799257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 50.

The square root of 83799257 is about 9154.1934106725. The cubic root of 83799257 is about 437.6027635608.

The spelling of 83799257 in words is "eighty-three million, seven hundred ninety-nine thousand, two hundred fifty-seven".