2593621 has 2 divisors, whose sum is σ = 2593622. Its totient is φ = 2593620.

The previous prime is 2593609. The next prime is 2593627. The reversal of 2593621 is 1263952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2592100 + 1521 = 1610^2 + 39^2 .

It is a cyclic number.

It is not a de Polignac number, because 2593621 - 2¹⁷ = 2462549 is a prime.

It is a Chen prime.

It is an Ulam number.

2593621 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2593621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2593627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1296810 + 1296811.

It is an arithmetic number, because the mean of its divisors is an integer number (1296811).

2^2593621 is an apocalyptic number.

It is an amenable number.

2593621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2593621 is an equidigital number, since it uses as much as digits as its factorization.

2593621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 2593621 is about 1610.4722909755. The cubic root of 2593621 is about 137.3943386605.

The spelling of 2593621 in words is "two million, five hundred ninety-three thousand, six hundred twenty-one".