82663519 has 2 divisors, whose sum is σ = 82663520. Its totient is φ = 82663518.

The previous prime is 82663499. The next prime is 82663549. The reversal of 82663519 is 91536628.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82663519 - 2⁵ = 82663487 is a prime.

It is a super-2 number, since 2×82663519² = 13666514746926722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82663549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41331759 + 41331760.

It is an arithmetic number, because the mean of its divisors is an integer number (41331760).

Almost surely, 2^82663519 is an apocalyptic number.

82663519 is a deficient number, since it is larger than the sum of its proper divisors (1).

82663519 is an equidigital number, since it uses as much as digits as its factorization.

82663519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The square root of 82663519 is about 9091.9480310877. The cubic root of 82663519 is about 435.6168093946.

The spelling of 82663519 in words is "eighty-two million, six hundred sixty-three thousand, five hundred nineteen".