4624639 has 2 divisors, whose sum is σ = 4624640. Its totient is φ = 4624638.

The previous prime is 4624637. The next prime is 4624643. The reversal of 4624639 is 9364264.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4624639 - 2¹ = 4624637 is a prime.

Together with 4624637, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4624637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2312319 + 2312320.

It is an arithmetic number, because the mean of its divisors is an integer number (2312320).

Almost surely, 2^4624639 is an apocalyptic number.

4624639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4624639 is an equidigital number, since it uses as much as digits as its factorization.

4624639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 34.

The square root of 4624639 is about 2150.4973843276. The cubic root of 4624639 is about 166.6067575791.

The spelling of 4624639 in words is "four million, six hundred twenty-four thousand, six hundred thirty-nine".