2489689 has 4 divisors (see below), whose sum is σ = 2502400. Its totient is φ = 2476980.

The previous prime is 2489687. The next prime is 2489713. The reversal of 2489689 is 9869842.

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 2489689 - 2¹ = 2489687 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2489687) 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, 6057 + ... + 6454.

It is an arithmetic number, because the mean of its divisors is an integer number (625600).

2^2489689 is an apocalyptic number.

It is an amenable number.

2489689 is a deficient number, since it is larger than the sum of its proper divisors (12711).

2489689 is a wasteful number, since it uses less digits than its factorization.

2489689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12710.

The product of its digits is 248832, while the sum is 46.

The square root of 2489689 is about 1577.8748366078. The cubic root of 2489689 is about 135.5340346507.

The spelling of 2489689 in words is "two million, four hundred eighty-nine thousand, six hundred eighty-nine".