2639343 has 8 divisors (see below), whose sum is σ = 4021888. Its totient is φ = 1508184.

The previous prime is 2639339. The next prime is 2639353. The reversal of 2639343 is 3439362.

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

It is not a de Polignac number, because 2639343 - 2² = 2639339 is a prime.

It is a super-2 number, since 2×2639343² = 13932262943298, which contains 22 as substring.

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 2639343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639303) 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, 62821 + ... + 62862.

It is an arithmetic number, because the mean of its divisors is an integer number (502736).

2^2639343 is an apocalyptic number.

2639343 is a deficient number, since it is larger than the sum of its proper divisors (1382545).

2639343 is a wasteful number, since it uses less digits than its factorization.

2639343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125693.

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

The square root of 2639343 is about 1624.6054905730. The cubic root of 2639343 is about 138.1969986287.

The spelling of 2639343 in words is "two million, six hundred thirty-nine thousand, three hundred forty-three".