2593921 has 4 divisors (see below), whose sum is σ = 2829744. Its totient is φ = 2358100.

The previous prime is 2593919. The next prime is 2593933. The reversal of 2593921 is 1293952.

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 2593921 - 2¹ = 2593919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2593961) 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, 117895 + ... + 117916.

It is an arithmetic number, because the mean of its divisors is an integer number (707436).

2^2593921 is an apocalyptic number.

It is an amenable number.

2593921 is a deficient number, since it is larger than the sum of its proper divisors (235823).

2593921 is a wasteful number, since it uses less digits than its factorization.

2593921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235822.

The product of its digits is 4860, while the sum is 31.

The square root of 2593921 is about 1610.5654286616. The cubic root of 2593921 is about 137.3996358508.

Adding to 2593921 its sum of digits (31), we get a palindrome (2593952).

The spelling of 2593921 in words is "two million, five hundred ninety-three thousand, nine hundred twenty-one".