4879639 has 2 divisors, whose sum is σ = 4879640. Its totient is φ = 4879638.

The previous prime is 4879631. The next prime is 4879643. The reversal of 4879639 is 9369784.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4879639 - 2³ = 4879631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4879631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2439819 + 2439820.

It is an arithmetic number, because the mean of its divisors is an integer number (2439820).

Almost surely, 2^4879639 is an apocalyptic number.

4879639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4879639 is an equidigital number, since it uses as much as digits as its factorization.

4879639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 4879639 is about 2208.9904934155. The cubic root of 4879639 is about 169.6143391334.

The spelling of 4879639 in words is "four million, eight hundred seventy-nine thousand, six hundred thirty-nine".