82840519 has 2 divisors, whose sum is σ = 82840520. Its totient is φ = 82840518.

The previous prime is 82840493. The next prime is 82840547. The reversal of 82840519 is 91504828.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82840519 - 2¹⁷ = 82709447 is a prime.

It is a super-2 number, since 2×82840519² = 13725103176378722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82840819) 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, 41420259 + 41420260.

It is an arithmetic number, because the mean of its divisors is an integer number (41420260).

Almost surely, 2^82840519 is an apocalyptic number.

82840519 is a deficient number, since it is larger than the sum of its proper divisors (1).

82840519 is an equidigital number, since it uses as much as digits as its factorization.

82840519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 82840519 is about 9101.6767136611. The cubic root of 82840519 is about 435.9275035173.

The spelling of 82840519 in words is "eighty-two million, eight hundred forty thousand, five hundred nineteen".