4013803 has 4 divisors (see below), whose sum is σ = 4152240. Its totient is φ = 3875368.

The previous prime is 4013783. The next prime is 4013827. The reversal of 4013803 is 3083104.

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-4013803 is a prime.

It is a super-2 number, since 2×4013803² = 32221229045618, which contains 22 as substring.

It is a Duffinian number.

4013803 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4010803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69175 + ... + 69232.

It is an arithmetic number, because the mean of its divisors is an integer number (1038060).

Almost surely, 2^4013803 is an apocalyptic number.

4013803 is a deficient number, since it is larger than the sum of its proper divisors (138437).

4013803 is a wasteful number, since it uses less digits than its factorization.

4013803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138436.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4013803 is about 2003.4477782064. The cubic root of 4013803 is about 158.9224863795.

Adding to 4013803 its reverse (3083104), we get a palindrome (7096907).

The spelling of 4013803 in words is "four million, thirteen thousand, eight hundred three".