2597439 has 8 divisors (see below), whose sum is σ = 3729712. Its totient is φ = 1598400.

The previous prime is 2597407. The next prime is 2597453. The reversal of 2597439 is 9347952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2597439 - 2⁵ = 2597407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 66601 = 2597439 / (2 + 5 + 9 + 7 + 4 + 3 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2597397 and 2597406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2597489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33262 + ... + 33339.

It is an arithmetic number, because the mean of its divisors is an integer number (466214).

2^2597439 is an apocalyptic number.

2597439 is a deficient number, since it is larger than the sum of its proper divisors (1132273).

2597439 is a wasteful number, since it uses less digits than its factorization.

2597439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66617.

The product of its digits is 68040, while the sum is 39.

The square root of 2597439 is about 1611.6572216200. The cubic root of 2597439 is about 137.4617237812.

The spelling of 2597439 in words is "two million, five hundred ninety-seven thousand, four hundred thirty-nine".