2455989 has 8 divisors (see below), whose sum is σ = 3293472. Its totient is φ = 1627920.

The previous prime is 2455987. The next prime is 2456011. The reversal of 2455989 is 9895542.

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

It is not a de Polignac number, because 2455989 - 2¹ = 2455987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2455989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2455987) 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, 1719 + ... + 2804.

It is an arithmetic number, because the mean of its divisors is an integer number (411684).

2^2455989 is an apocalyptic number.

It is an amenable number.

2455989 is a deficient number, since it is larger than the sum of its proper divisors (837483).

2455989 is a wasteful number, since it uses less digits than its factorization.

2455989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4707.

The product of its digits is 129600, while the sum is 42.

The square root of 2455989 is about 1567.1595324025. The cubic root of 2455989 is about 134.9197328061.

The spelling of 2455989 in words is "two million, four hundred fifty-five thousand, nine hundred eighty-nine".