2579491 has 4 divisors (see below), whose sum is σ = 2583000. Its totient is φ = 2575984.

The previous prime is 2579477. The next prime is 2579513. The reversal of 2579491 is 1949752.

2579491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2579491 - 2⁷ = 2579363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2579491.

It is not an unprimeable number, because it can be changed into a prime (2579411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181 + ... + 2278.

It is an arithmetic number, because the mean of its divisors is an integer number (645750).

2^2579491 is an apocalyptic number.

2579491 is a deficient number, since it is larger than the sum of its proper divisors (3509).

2579491 is a wasteful number, since it uses less digits than its factorization.

2579491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508.

The product of its digits is 22680, while the sum is 37.

The square root of 2579491 is about 1606.0793878261. The cubic root of 2579491 is about 137.1443768949.

The spelling of 2579491 in words is "two million, five hundred seventy-nine thousand, four hundred ninety-one".