2597321 has 4 divisors (see below), whose sum is σ = 2710272. Its totient is φ = 2484372.

The previous prime is 2597303. The next prime is 2597323. The reversal of 2597321 is 1237952.

2597321 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 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 2597321 - 2¹⁴ = 2580937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2597323) 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, 56441 + ... + 56486.

It is an arithmetic number, because the mean of its divisors is an integer number (677568).

2^2597321 is an apocalyptic number.

It is an amenable number.

2597321 is a deficient number, since it is larger than the sum of its proper divisors (112951).

2597321 is a wasteful number, since it uses less digits than its factorization.

2597321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112950.

The product of its digits is 3780, while the sum is 29.

The square root of 2597321 is about 1611.6206129235. The cubic root of 2597321 is about 137.4596421502.

The spelling of 2597321 in words is "two million, five hundred ninety-seven thousand, three hundred twenty-one".