4576639 has 2 divisors, whose sum is σ = 4576640. Its totient is φ = 4576638.

The previous prime is 4576631. The next prime is 4576651. The reversal of 4576639 is 9366754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4576639 - 2³ = 4576631 is a prime.

4576639 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4576631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2288319 + 2288320.

It is an arithmetic number, because the mean of its divisors is an integer number (2288320).

Almost surely, 2^4576639 is an apocalyptic number.

4576639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4576639 is an equidigital number, since it uses as much as digits as its factorization.

4576639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 40.

The square root of 4576639 is about 2139.3080657072. The cubic root of 4576639 is about 166.0283374471.

The spelling of 4576639 in words is "four million, five hundred seventy-six thousand, six hundred thirty-nine".