4023813 has 8 divisors (see below), whose sum is σ = 5466528. Its totient is φ = 2631824.

The previous prime is 4023809. The next prime is 4023821. The reversal of 4023813 is 3183204.

It is a happy number.

4023813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4023813 - 2² = 4023809 is a prime.

4023813 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4023813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4023853) 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 7 ways as a sum of consecutive naturals, for example, 12495 + ... + 12812.

It is an arithmetic number, because the mean of its divisors is an integer number (683316).

Almost surely, 2^4023813 is an apocalyptic number.

It is an amenable number.

4023813 is a deficient number, since it is larger than the sum of its proper divisors (1442715).

4023813 is a wasteful number, since it uses less digits than its factorization.

4023813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25363.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 4023813 is about 2005.9444159797. The cubic root of 4023813 is about 159.0544886623.

The spelling of 4023813 in words is "four million, twenty-three thousand, eight hundred thirteen".