4008939 has 16 divisors (see below), whose sum is σ = 5975424. Its totient is φ = 2369600.

The previous prime is 4008919. The next prime is 4008947. The reversal of 4008939 is 9398004.

It is a cyclic number.

It is not a de Polignac number, because 4008939 - 2⁹ = 4008427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (4008919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129 + ... + 2834.

It is an arithmetic number, because the mean of its divisors is an integer number (373464).

Almost surely, 2^4008939 is an apocalyptic number.

4008939 is a deficient number, since it is larger than the sum of its proper divisors (1966485).

4008939 is a wasteful number, since it uses less digits than its factorization.

4008939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 4008939 is about 2002.2335028662. The cubic root of 4008939 is about 158.8582653710.

It can be divided in two parts, 400 and 8939, that added together give a palindrome (9339).

The spelling of 4008939 in words is "four million, eight thousand, nine hundred thirty-nine".