83285957 has 2 divisors, whose sum is σ = 83285958. Its totient is φ = 83285956.

The previous prime is 83285953. The next prime is 83285959. The reversal of 83285957 is 75958238.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75186241 + 8099716 = 8671^2 + 2846^2 .

It is a cyclic number.

It is not a de Polignac number, because 83285957 - 2² = 83285953 is a prime.

Together with 83285959, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83285953) 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, 41642978 + 41642979.

It is an arithmetic number, because the mean of its divisors is an integer number (41642979).

Almost surely, 2^83285957 is an apocalyptic number.

It is an amenable number.

83285957 is a deficient number, since it is larger than the sum of its proper divisors (1).

83285957 is an equidigital number, since it uses as much as digits as its factorization.

83285957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 47.

The square root of 83285957 is about 9126.1140141903. The cubic root of 83285957 is about 436.7074425985.

The spelling of 83285957 in words is "eighty-three million, two hundred eighty-five thousand, nine hundred fifty-seven".