4522639 has 8 divisors (see below), whose sum is σ = 4953168. Its totient is φ = 4095360.

The previous prime is 4522633. The next prime is 4522657. The reversal of 4522639 is 9362254.

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 4522639 - 2⁹ = 4522127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4522639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4522633) 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, 2839 + ... + 4135.

It is an arithmetic number, because the mean of its divisors is an integer number (619146).

Almost surely, 2^4522639 is an apocalyptic number.

4522639 is a deficient number, since it is larger than the sum of its proper divisors (430529).

4522639 is a wasteful number, since it uses less digits than its factorization.

4522639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625.

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

The square root of 4522639 is about 2126.6497125761. The cubic root of 4522639 is about 165.3727599384.

The spelling of 4522639 in words is "four million, five hundred twenty-two thousand, six hundred thirty-nine".