2364639 has 4 divisors (see below), whose sum is σ = 3152856. Its totient is φ = 1576424.

The previous prime is 2364629. The next prime is 2364643. The reversal of 2364639 is 9364632.

2364639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2364639 - 2⁴ = 2364623 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2364619) 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 3 ways as a sum of consecutive naturals, for example, 394104 + ... + 394109.

It is an arithmetic number, because the mean of its divisors is an integer number (788214).

2^2364639 is an apocalyptic number.

2364639 is a deficient number, since it is larger than the sum of its proper divisors (788217).

2364639 is an equidigital number, since it uses as much as digits as its factorization.

2364639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788216.

The product of its digits is 23328, while the sum is 33.

The square root of 2364639 is about 1537.7382742196. The cubic root of 2364639 is about 133.2257834098.

Multiplying 2364639 by its sum of digits (33), we get a palindrome (78033087).

It can be divided in two parts, 2364 and 639, that added together give a palindrome (3003).

The spelling of 2364639 in words is "two million, three hundred sixty-four thousand, six hundred thirty-nine".