4047939 has 36 divisors (see below), whose sum is σ = 6953544. Its totient is φ = 2261952.

The previous prime is 4047929. The next prime is 4047961. The reversal of 4047939 is 9397404.

4047939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4047939 - 2⁷ = 4047811 is a prime.

4047939 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4047929) 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 35 ways as a sum of consecutive naturals, for example, 29479 + ... + 29615.

It is an arithmetic number, because the mean of its divisors is an integer number (193154).

Almost surely, 2^4047939 is an apocalyptic number.

4047939 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

4047939 is a deficient number, since it is larger than the sum of its proper divisors (2905605).

4047939 is a wasteful number, since it uses less digits than its factorization.

4047939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 4047939 is about 2011.9490550210. The cubic root of 4047939 is about 159.3717420326.

The spelling of 4047939 in words is "four million, forty-seven thousand, nine hundred thirty-nine".