2459989 has 4 divisors (see below), whose sum is σ = 2811424. Its totient is φ = 2108556.

The previous prime is 2459957. The next prime is 2459993. The reversal of 2459989 is 9899542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2459989 - 2⁵ = 2459957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2459909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175707 + ... + 175720.

It is an arithmetic number, because the mean of its divisors is an integer number (702856).

2^2459989 is an apocalyptic number.

It is an amenable number.

2459989 is a deficient number, since it is larger than the sum of its proper divisors (351435).

2459989 is an equidigital number, since it uses as much as digits as its factorization.

2459989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351434.

The product of its digits is 233280, while the sum is 46.

The square root of 2459989 is about 1568.4352074600. The cubic root of 2459989 is about 134.9929397314.

The spelling of 2459989 in words is "two million, four hundred fifty-nine thousand, nine hundred eighty-nine".