82122489 has 36 divisors (see below), whose sum is σ = 126986496. Its totient is φ = 51114096.

The previous prime is 82122487. The next prime is 82122511. The reversal of 82122489 is 98422128.

It is not a de Polignac number, because 82122489 - 2¹ = 82122487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82122487) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 223584 + ... + 223950.

Almost surely, 2^82122489 is an apocalyptic number.

It is an amenable number.

82122489 is a deficient number, since it is larger than the sum of its proper divisors (44864007).

82122489 is a wasteful number, since it uses less digits than its factorization.

82122489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 440 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 82122489 is about 9062.1459379112. The cubic root of 82122489 is about 434.6643625778.

It can be divided in two parts, 8212 and 2489, that added together give a palindrome (10701).

The spelling of 82122489 in words is "eighty-two million, one hundred twenty-two thousand, four hundred eighty-nine".