82819237 has 2 divisors, whose sum is σ = 82819238. Its totient is φ = 82819236.

The previous prime is 82819213. The next prime is 82819241. The reversal of 82819237 is 73291828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71081761 + 11737476 = 8431^2 + 3426^2 .

It is a cyclic number.

It is not a de Polignac number, because 82819237 - 2¹⁵ = 82786469 is a prime.

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 82819237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82819277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41409618 + 41409619.

It is an arithmetic number, because the mean of its divisors is an integer number (41409619).

Almost surely, 2^82819237 is an apocalyptic number.

It is an amenable number.

82819237 is a deficient number, since it is larger than the sum of its proper divisors (1).

82819237 is an equidigital number, since it uses as much as digits as its factorization.

82819237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 40.

The square root of 82819237 is about 9100.5075133203. The cubic root of 82819237 is about 435.8901699201.

The spelling of 82819237 in words is "eighty-two million, eight hundred nineteen thousand, two hundred thirty-seven".