82519664 has 10 divisors (see below), whose sum is σ = 159881880. Its totient is φ = 41259824.

The previous prime is 82519663. The next prime is 82519667. The reversal of 82519664 is 46691528.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82519663) 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, 2578724 + ... + 2578755.

It is an arithmetic number, because the mean of its divisors is an integer number (15988188).

Almost surely, 2^82519664 is an apocalyptic number.

It is an amenable number.

82519664 is a deficient number, since it is larger than the sum of its proper divisors (77362216).

82519664 is a wasteful number, since it uses less digits than its factorization.

82519664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157487 (or 5157481 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 82519664 is about 9084.0334653721. The cubic root of 82519664 is about 435.3639689505.

The spelling of 82519664 in words is "eighty-two million, five hundred nineteen thousand, six hundred sixty-four".