82083569 has 4 divisors (see below), whose sum is σ = 82101744. Its totient is φ = 82065396.

The previous prime is 82083563. The next prime is 82083571. The reversal of 82083569 is 96538028.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82083569 is a prime.

It is a super-2 number, since 2×82083569² = 13475424599555522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82083563) 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, 3494 + ... + 13280.

It is an arithmetic number, because the mean of its divisors is an integer number (20525436).

Almost surely, 2^82083569 is an apocalyptic number.

It is an amenable number.

82083569 is a deficient number, since it is larger than the sum of its proper divisors (18175).

82083569 is an equidigital number, since it uses as much as digits as its factorization.

82083569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18174.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 82083569 is about 9059.9982891831. The cubic root of 82083569 is about 434.5956854493.

The spelling of 82083569 in words is "eighty-two million, eighty-three thousand, five hundred sixty-nine".