82845949 has 2 divisors, whose sum is σ = 82845950. Its totient is φ = 82845948.

The previous prime is 82845929. The next prime is 82845967. The reversal of 82845949 is 94954828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47858724 + 34987225 = 6918^2 + 5915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82845949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82845929) 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, 41422974 + 41422975.

It is an arithmetic number, because the mean of its divisors is an integer number (41422975).

Almost surely, 2^82845949 is an apocalyptic number.

It is an amenable number.

82845949 is a deficient number, since it is larger than the sum of its proper divisors (1).

82845949 is an equidigital number, since it uses as much as digits as its factorization.

82845949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 49.

The square root of 82845949 is about 9101.9750054590. The cubic root of 82845949 is about 435.9370279813.

The spelling of 82845949 in words is "eighty-two million, eight hundred forty-five thousand, nine hundred forty-nine".