82428089 has 8 divisors (see below), whose sum is σ = 84363840. Its totient is φ = 80514000.

The previous prime is 82428079. The next prime is 82428107. The reversal of 82428089 is 98082428.

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

It is a de Polignac number, because none of the positive numbers 2^k-82428089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82428079) 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 7 ways as a sum of consecutive naturals, for example, 2414 + ... + 13064.

It is an arithmetic number, because the mean of its divisors is an integer number (10545480).

Almost surely, 2^82428089 is an apocalyptic number.

It is an amenable number.

82428089 is a deficient number, since it is larger than the sum of its proper divisors (1935751).

82428089 is a wasteful number, since it uses less digits than its factorization.

82428089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10831.

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

The square root of 82428089 is about 9078.9916290302. The cubic root of 82428089 is about 435.2028630580.

The spelling of 82428089 in words is "eighty-two million, four hundred twenty-eight thousand, eighty-nine".