82716519 has 32 divisors (see below), whose sum is σ = 119441920. Its totient is φ = 50761728.

The previous prime is 82716479. The next prime is 82716521. The reversal of 82716519 is 91561728.

It is not a de Polignac number, because 82716519 - 2²⁴ = 65939303 is a prime.

It is a super-2 number, since 2×82716519² = 13684045030954722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82716559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428487 + ... + 428679.

It is an arithmetic number, because the mean of its divisors is an integer number (3732560).

Almost surely, 2^82716519 is an apocalyptic number.

82716519 is a deficient number, since it is larger than the sum of its proper divisors (36725401).

82716519 is a wasteful number, since it uses less digits than its factorization.

82716519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391.

The product of its digits is 30240, while the sum is 39.

The square root of 82716519 is about 9094.8622309522. The cubic root of 82716519 is about 435.7098885775.

The spelling of 82716519 in words is "eighty-two million, seven hundred sixteen thousand, five hundred nineteen".