2220763 has 4 divisors (see below), whose sum is σ = 2223928. Its totient is φ = 2217600.

The previous prime is 2220749. The next prime is 2220773. The reversal of 2220763 is 3670222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2220763 - 2⁵ = 2220731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220773) 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, 6 + ... + 2107.

It is an arithmetic number, because the mean of its divisors is an integer number (555982).

2^2220763 is an apocalyptic number.

2220763 is a deficient number, since it is larger than the sum of its proper divisors (3165).

2220763 is a wasteful number, since it uses less digits than its factorization.

2220763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 2220763 is about 1490.2224666136. Note that the first 3 decimals coincide. The cubic root of 2220763 is about 130.4670184754.

Adding to 2220763 its reverse (3670222), we get a palindrome (5890985).

The spelling of 2220763 in words is "two million, two hundred twenty thousand, seven hundred sixty-three".