82504665 has 12 divisors (see below), whose sum is σ = 143008164. Its totient is φ = 44002464.

The previous prime is 82504651. The next prime is 82504699. The reversal of 82504665 is 56640528.

It can be written as a sum of positive squares in 2 ways, for example, as 65464281 + 17040384 = 8091^2 + 4128^2 .

It is not a de Polignac number, because 82504665 - 2⁴ = 82504649 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 916674 + ... + 916763.

It is an arithmetic number, because the mean of its divisors is an integer number (11917347).

Almost surely, 2^82504665 is an apocalyptic number.

It is an amenable number.

82504665 is a deficient number, since it is larger than the sum of its proper divisors (60503499).

82504665 is a wasteful number, since it uses less digits than its factorization.

82504665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833448 (or 1833445 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 82504665 is about 9083.2078584606. The cubic root of 82504665 is about 435.3375897033.

The spelling of 82504665 in words is "eighty-two million, five hundred four thousand, six hundred sixty-five".