82912489 has 8 divisors (see below), whose sum is σ = 91467360. Its totient is φ = 74527200.

The previous prime is 82912477. The next prime is 82912513. The reversal of 82912489 is 98421928.

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

It is not a de Polignac number, because 82912489 - 2¹¹ = 82910441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82912429) 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, 41367 + ... + 43324.

It is an arithmetic number, because the mean of its divisors is an integer number (11433420).

Almost surely, 2^82912489 is an apocalyptic number.

82912489 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

82912489 is a deficient number, since it is larger than the sum of its proper divisors (8554871).

82912489 is a wasteful number, since it uses less digits than its factorization.

82912489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84791.

The product of its digits is 82944, while the sum is 43.

The square root of 82912489 is about 9105.6295224438. The cubic root of 82912489 is about 436.0537083488.

The spelling of 82912489 in words is "eighty-two million, nine hundred twelve thousand, four hundred eighty-nine".