4479939 has 6 divisors (see below), whose sum is σ = 6471036. Its totient is φ = 2986620.

The previous prime is 4479919. The next prime is 4479941. The reversal of 4479939 is 9399744.

It is not a de Polignac number, because 4479939 - 2⁵ = 4479907 is a prime.

4479939 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4479894 and 4479903.

It is not an unprimeable number, because it can be changed into a prime (4479919) 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 5 ways as a sum of consecutive naturals, for example, 248877 + ... + 248894.

It is an arithmetic number, because the mean of its divisors is an integer number (1078506).

Almost surely, 2^4479939 is an apocalyptic number.

4479939 is a deficient number, since it is larger than the sum of its proper divisors (1991097).

4479939 is a wasteful number, since it uses less digits than its factorization.

4479939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497777 (or 497774 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 4479939 is about 2116.5866389071. The cubic root of 4479939 is about 164.8506637794.

The spelling of 4479939 in words is "four million, four hundred seventy-nine thousand, nine hundred thirty-nine".