2589949 has 4 divisors (see below), whose sum is σ = 2613820. Its totient is φ = 2566080.

The previous prime is 2589931. The next prime is 2589971. The reversal of 2589949 is 9499852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1625625 + 964324 = 1275^2 + 982^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2589949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2589899 and 2589908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2589649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11772 + ... + 11989.

It is an arithmetic number, because the mean of its divisors is an integer number (653455).

2^2589949 is an apocalyptic number.

It is an amenable number.

2589949 is a deficient number, since it is larger than the sum of its proper divisors (23871).

2589949 is a wasteful number, since it uses less digits than its factorization.

2589949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23870.

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

The square root of 2589949 is about 1609.3318489361. The cubic root of 2589949 is about 137.3294679267.

Subtracting 2589949 from its reverse (9499852), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2589949 in words is "two million, five hundred eighty-nine thousand, nine hundred forty-nine".