4021363 has 4 divisors (see below), whose sum is σ = 4028368. Its totient is φ = 4014360.

The previous prime is 4021357. The next prime is 4021379. The reversal of 4021363 is 3631204.

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-4021363 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 4021363.

It is not an unprimeable number, because it can be changed into a prime (4021663) 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, 2556 + ... + 3817.

It is an arithmetic number, because the mean of its divisors is an integer number (1007092).

Almost surely, 2^4021363 is an apocalyptic number.

4021363 is a deficient number, since it is larger than the sum of its proper divisors (7005).

4021363 is an equidigital number, since it uses as much as digits as its factorization.

4021363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7004.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 4021363 is about 2005.3336380762. Note that the first 3 decimals coincide. The cubic root of 4021363 is about 159.0222006631.

Adding to 4021363 its reverse (3631204), we get a palindrome (7652567).

The spelling of 4021363 in words is "four million, twenty-one thousand, three hundred sixty-three".