82482809 has 4 divisors (see below), whose sum is σ = 82628340. Its totient is φ = 82337280.

The previous prime is 82482713. The next prime is 82482811. The reversal of 82482809 is 90828428.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28783225 + 53699584 = 5365^2 + 7328^2 .

It is a cyclic number.

It is not a de Polignac number, because 82482809 - 2²⁴ = 65705593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82482859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71912 + ... + 73049.

It is an arithmetic number, because the mean of its divisors is an integer number (20657085).

Almost surely, 2^82482809 is an apocalyptic number.

It is an amenable number.

82482809 is a deficient number, since it is larger than the sum of its proper divisors (145531).

82482809 is a wasteful number, since it uses less digits than its factorization.

82482809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145530.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 82482809 is about 9082.0046795848. The cubic root of 82482809 is about 435.2991450948.

The spelling of 82482809 in words is "eighty-two million, four hundred eighty-two thousand, eight hundred nine".