2643393 has 8 divisors (see below), whose sum is σ = 3610656. Its totient is φ = 1719200.

The previous prime is 2643383. The next prime is 2643397. The reversal of 2643393 is 3933462.

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 2643393 - 2¹⁰ = 2642369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2643393.

It is not an unprimeable number, because it can be changed into a prime (2643397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10623 + ... + 10868.

It is an arithmetic number, because the mean of its divisors is an integer number (451332).

2^2643393 is an apocalyptic number.

It is an amenable number.

2643393 is a deficient number, since it is larger than the sum of its proper divisors (967263).

2643393 is a wasteful number, since it uses less digits than its factorization.

2643393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21535.

The product of its digits is 11664, while the sum is 30.

The square root of 2643393 is about 1625.8514692308. The cubic root of 2643393 is about 138.2676490150.

The spelling of 2643393 in words is "two million, six hundred forty-three thousand, three hundred ninety-three".