2579391 has 16 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 1697400.

The previous prime is 2579389. The next prime is 2579399. The reversal of 2579391 is 1939752.

It is not a de Polignac number, because 2579391 - 2¹ = 2579389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2579399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1666 + ... + 2816.

It is an arithmetic number, because the mean of its divisors is an integer number (241920).

2^2579391 is an apocalyptic number.

2579391 is a deficient number, since it is larger than the sum of its proper divisors (1291329).

2579391 is a wasteful number, since it uses less digits than its factorization.

2579391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1237 counting only the distinct ones).

The product of its digits is 17010, while the sum is 36.

The square root of 2579391 is about 1606.0482558130. The cubic root of 2579391 is about 137.1426046312.

The spelling of 2579391 in words is "two million, five hundred seventy-nine thousand, three hundred ninety-one".