82504413 has 20 divisors (see below), whose sum is σ = 126582940. Its totient is φ = 53514432.

The previous prime is 82504399. The next prime is 82504439. The reversal of 82504413 is 31440528.

It can be written as a sum of positive squares in 2 ways, for example, as 53538489 + 28965924 = 7317^2 + 5382^2 .

It is not a de Polignac number, because 82504413 - 2⁹ = 82503901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82504313) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 10768 + ... + 16761.

It is an arithmetic number, because the mean of its divisors is an integer number (6329147).

Almost surely, 2^82504413 is an apocalyptic number.

It is an amenable number.

82504413 is a deficient number, since it is larger than the sum of its proper divisors (44078527).

82504413 is a wasteful number, since it uses less digits than its factorization.

82504413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27578 (or 27569 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 82504413 is about 9083.1939866987. The cubic root of 82504413 is about 435.3371464751.

The spelling of 82504413 in words is "eighty-two million, five hundred four thousand, four hundred thirteen".