82644568 has 16 divisors (see below), whose sum is σ = 157142160. Its totient is φ = 40740000.

The previous prime is 82644559. The next prime is 82644593. The reversal of 82644568 is 86544628.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 72183 + ... + 73318.

It is an arithmetic number, because the mean of its divisors is an integer number (9821385).

Almost surely, 2^82644568 is an apocalyptic number.

It is an amenable number.

82644568 is a deficient number, since it is larger than the sum of its proper divisors (74497592).

82644568 is a wasteful number, since it uses less digits than its factorization.

82644568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145578 (or 145574 counting only the distinct ones).

The product of its digits is 368640, while the sum is 43.

The square root of 82644568 is about 9090.9057854539. The cubic root of 82644568 is about 435.5835177838.

The spelling of 82644568 in words is "eighty-two million, six hundred forty-four thousand, five hundred sixty-eight".