82859189 has 4 divisors (see below), whose sum is σ = 94696224. Its totient is φ = 71022156.

The previous prime is 82859143. The next prime is 82859197. The reversal of 82859189 is 98195828.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82859189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82855189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5918507 + ... + 5918520.

It is an arithmetic number, because the mean of its divisors is an integer number (23674056).

Almost surely, 2^82859189 is an apocalyptic number.

It is an amenable number.

82859189 is a deficient number, since it is larger than the sum of its proper divisors (11837035).

82859189 is a wasteful number, since it uses less digits than its factorization.

82859189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11837034.

The product of its digits is 414720, while the sum is 50.

The square root of 82859189 is about 9102.7022910782. The cubic root of 82859189 is about 435.9602497919.

The spelling of 82859189 in words is "eighty-two million, eight hundred fifty-nine thousand, one hundred eighty-nine".