4004047 has 8 divisors (see below), whose sum is σ = 4219776. Its totient is φ = 3791832.

The previous prime is 4004023. The next prime is 4004057. The reversal of 4004047 is 7404004.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4004047 - 2¹¹ = 4001999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1648 + ... + 3274.

It is an arithmetic number, because the mean of its divisors is an integer number (527472).

Almost surely, 2^4004047 is an apocalyptic number.

4004047 is a deficient number, since it is larger than the sum of its proper divisors (215729).

4004047 is a wasteful number, since it uses less digits than its factorization.

4004047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 4004047 is about 2001.0114942199. The cubic root of 4004047 is about 158.7936222527.

The spelling of 4004047 in words is "four million, four thousand, forty-seven".