82830565 has 8 divisors (see below), whose sum is σ = 99518328. Its totient is φ = 66183360.

The previous prime is 82830547. The next prime is 82830577. The reversal of 82830565 is 56503828.

It can be written as a sum of positive squares in 4 ways, for example, as 10903204 + 71927361 = 3302^2 + 8481^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82830565 - 2⁵ = 82830533 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5446 + ... + 13975.

It is an arithmetic number, because the mean of its divisors is an integer number (12439791).

Almost surely, 2^82830565 is an apocalyptic number.

It is an amenable number.

82830565 is a deficient number, since it is larger than the sum of its proper divisors (16687763).

82830565 is a wasteful number, since it uses less digits than its factorization.

82830565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20279.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 82830565 is about 9101.1298749111. The cubic root of 82830565 is about 435.9100426731.

The spelling of 82830565 in words is "eighty-two million, eight hundred thirty thousand, five hundred sixty-five".