82285919 has 2 divisors, whose sum is σ = 82285920. Its totient is φ = 82285918.

The previous prime is 82285913. The next prime is 82285937. The reversal of 82285919 is 91958228.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82285919 is a prime.

It is a super-2 number, since 2×82285919² = 13541944931349122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82285919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82285913) 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, 41142959 + 41142960.

It is an arithmetic number, because the mean of its divisors is an integer number (41142960).

Almost surely, 2^82285919 is an apocalyptic number.

82285919 is a deficient number, since it is larger than the sum of its proper divisors (1).

82285919 is an equidigital number, since it uses as much as digits as its factorization.

82285919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 44.

The square root of 82285919 is about 9071.1586360288. The cubic root of 82285919 is about 434.9525098990.

The spelling of 82285919 in words is "eighty-two million, two hundred eighty-five thousand, nine hundred nineteen".