2643259 has 8 divisors (see below), whose sum is σ = 2730240. Its totient is φ = 2557800.

The previous prime is 2643247. The next prime is 2643283. The reversal of 2643259 is 9523462.

2643259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2643259 - 2⁵ = 2643227 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁸ + 6 + 4³ + 3¹³ + 2²⁰ + 5² + 9 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2643259.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643209) 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 7 ways as a sum of consecutive naturals, for example, 3874 + ... + 4504.

It is an arithmetic number, because the mean of its divisors is an integer number (341280).

2^2643259 is an apocalyptic number.

2643259 is a deficient number, since it is larger than the sum of its proper divisors (86981).

2643259 is an equidigital number, since it uses as much as digits as its factorization.

2643259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761.

The product of its digits is 12960, while the sum is 31.

The square root of 2643259 is about 1625.8102595322. The cubic root of 2643259 is about 138.2653126014.

The spelling of 2643259 in words is "two million, six hundred forty-three thousand, two hundred fifty-nine".