82989285 has 8 divisors (see below), whose sum is σ = 132782880. Its totient is φ = 44260944.

The previous prime is 82989259. The next prime is 82989301. The reversal of 82989285 is 58298928.

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

It is not a de Polignac number, because 82989285 - 2¹⁶ = 82923749 is a prime.

It is a super-2 number, since 2×82989285² = 13774442849622450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 2766295 + ... + 2766324.

It is an arithmetic number, because the mean of its divisors is an integer number (16597860).

Almost surely, 2^82989285 is an apocalyptic number.

It is an amenable number.

82989285 is a deficient number, since it is larger than the sum of its proper divisors (49793595).

82989285 is a wasteful number, since it uses less digits than its factorization.

82989285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5532627.

The product of its digits is 829440, while the sum is 51.

The square root of 82989285 is about 9109.8454981410. The cubic root of 82989285 is about 436.1882954191.

The spelling of 82989285 in words is "eighty-two million, nine hundred eighty-nine thousand, two hundred eighty-five".