2639369 has 8 divisors (see below), whose sum is σ = 2822688. Its totient is φ = 2459200.

The previous prime is 2639353. The next prime is 2639389. The reversal of 2639369 is 9639362.

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 2639369 - 2⁴ = 2639353 is a prime.

It is a super-2 number, since 2×2639369² = 13932537436322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2639339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1094 + ... + 2544.

It is an arithmetic number, because the mean of its divisors is an integer number (352836).

2^2639369 is an apocalyptic number.

It is an amenable number.

2639369 is a deficient number, since it is larger than the sum of its proper divisors (183319).

2639369 is a wasteful number, since it uses less digits than its factorization.

2639369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575.

The product of its digits is 52488, while the sum is 38.

The square root of 2639369 is about 1624.6134924960. The cubic root of 2639369 is about 138.1974524171.

It can be divided in two parts, 26393 and 69, that added together give a palindrome (26462).

The spelling of 2639369 in words is "two million, six hundred thirty-nine thousand, three hundred sixty-nine".