2495989 has 4 divisors (see below), whose sum is σ = 2519424. Its totient is φ = 2472556.

The previous prime is 2495981. The next prime is 2495993. The reversal of 2495989 is 9895942.

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 not a de Polignac number, because 2495989 - 2³ = 2495981 is a prime.

It is a super-2 number, since 2×2495989² = 12459922176242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2495981) 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, 11557 + ... + 11770.

It is an arithmetic number, because the mean of its divisors is an integer number (629856).

2^2495989 is an apocalyptic number.

It is an amenable number.

2495989 is a deficient number, since it is larger than the sum of its proper divisors (23435).

2495989 is a wasteful number, since it uses less digits than its factorization.

2495989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23434.

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

The square root of 2495989 is about 1579.8699313551. The cubic root of 2495989 is about 135.6482584504.

The spelling of 2495989 in words is "two million, four hundred ninety-five thousand, nine hundred eighty-nine".