4004263 has 4 divisors (see below), whose sum is σ = 4026568. Its totient is φ = 3981960.

The previous prime is 4004249. The next prime is 4004267. The reversal of 4004263 is 3624004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4004263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4004263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004267) 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 3 ways as a sum of consecutive naturals, for example, 10881 + ... + 11242.

It is an arithmetic number, because the mean of its divisors is an integer number (1006642).

Almost surely, 2^4004263 is an apocalyptic number.

4004263 is a deficient number, since it is larger than the sum of its proper divisors (22305).

4004263 is a wasteful number, since it uses less digits than its factorization.

4004263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22304.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 4004263 is about 2001.0654661954. The cubic root of 4004263 is about 158.7964775976.

Adding to 4004263 its reverse (3624004), we get a palindrome (7628267).

The spelling of 4004263 in words is "four million, four thousand, two hundred sixty-three".