2489889 has 16 divisors (see below), whose sum is σ = 3515904. Its totient is φ = 1564800.

The previous prime is 2489881. The next prime is 2489891. The reversal of 2489889 is 9889842.

It is not a de Polignac number, because 2489889 - 2³ = 2489881 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2489881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3487 + ... + 4139.

It is an arithmetic number, because the mean of its divisors is an integer number (219744).

2^2489889 is an apocalyptic number.

It is an amenable number.

2489889 is a deficient number, since it is larger than the sum of its proper divisors (1026015).

2489889 is a wasteful number, since it uses less digits than its factorization.

2489889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728.

The product of its digits is 331776, while the sum is 48.

The square root of 2489889 is about 1577.9382117181. The cubic root of 2489889 is about 135.5376637628.

The spelling of 2489889 in words is "two million, four hundred eighty-nine thousand, eight hundred eighty-nine".