2489817 has 24 divisors (see below), whose sum is σ = 3851680. Its totient is φ = 1429560.

The previous prime is 2489813. The next prime is 2489831. The reversal of 2489817 is 7189842.

It is not a de Polignac number, because 2489817 - 2² = 2489813 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2489813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131034 + ... + 131052.

2^2489817 is an apocalyptic number.

It is an amenable number.

2489817 is a deficient number, since it is larger than the sum of its proper divisors (1361863).

2489817 is an equidigital number, since it uses as much as digits as its factorization.

2489817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 33 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 2489817 is about 1577.9153969716. The cubic root of 2489817 is about 135.5363573048.

The spelling of 2489817 in words is "two million, four hundred eighty-nine thousand, eight hundred seventeen".