4539939 has 8 divisors (see below), whose sum is σ = 6085392. Its totient is φ = 3010560.

The previous prime is 4539929. The next prime is 4539949. The reversal of 4539939 is 9399354.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4539929) and next prime (4539949).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4539939 - 2⁴ = 4539923 is a prime.

It is a super-2 number, since 2×4539939² = 41222092247442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4539939.

It is not an unprimeable number, because it can be changed into a prime (4539929) 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, 3342 + ... + 4499.

It is an arithmetic number, because the mean of its divisors is an integer number (760674).

Almost surely, 2^4539939 is an apocalyptic number.

4539939 is a deficient number, since it is larger than the sum of its proper divisors (1545453).

4539939 is a wasteful number, since it uses less digits than its factorization.

4539939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8037.

The product of its digits is 131220, while the sum is 42.

The square root of 4539939 is about 2130.7132608589. The cubic root of 4539939 is about 165.5833529556.

The spelling of 4539939 in words is "four million, five hundred thirty-nine thousand, nine hundred thirty-nine".