82355849 has 2 divisors, whose sum is σ = 82355850. Its totient is φ = 82355848.

The previous prime is 82355843. The next prime is 82355851. The reversal of 82355849 is 94855328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76387600 + 5968249 = 8740^2 + 2443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82355849 is a prime.

Together with 82355851, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82355843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41177924 + 41177925.

It is an arithmetic number, because the mean of its divisors is an integer number (41177925).

Almost surely, 2^82355849 is an apocalyptic number.

It is an amenable number.

82355849 is a deficient number, since it is larger than the sum of its proper divisors (1).

82355849 is an equidigital number, since it uses as much as digits as its factorization.

82355849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 44.

The square root of 82355849 is about 9075.0123415894. The cubic root of 82355849 is about 435.0756885956.

The spelling of 82355849 in words is "eighty-two million, three hundred fifty-five thousand, eight hundred forty-nine".