2579849 has 4 divisors (see below), whose sum is σ = 2584080. Its totient is φ = 2575620.

The previous prime is 2579827. The next prime is 2579891. The reversal of 2579849 is 9489752.

It is a happy number.

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 2579849 - 2⁸ = 2579593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2579809) 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, 1007 + ... + 2484.

It is an arithmetic number, because the mean of its divisors is an integer number (646020).

2^2579849 is an apocalyptic number.

It is an amenable number.

2579849 is a deficient number, since it is larger than the sum of its proper divisors (4231).

2579849 is an equidigital number, since it uses as much as digits as its factorization.

2579849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4230.

The product of its digits is 181440, while the sum is 44.

The square root of 2579849 is about 1606.1908354862. The cubic root of 2579849 is about 137.1507212236.

Subtracting 2579849 from its reverse (9489752), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2579849 in words is "two million, five hundred seventy-nine thousand, eight hundred forty-nine".