2220863 has 4 divisors (see below), whose sum is σ = 2351520. Its totient is φ = 2090208.

The previous prime is 2220839. The next prime is 2220887. The reversal of 2220863 is 3680222.

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

It is an interprime number because it is at equal distance from previous prime (2220839) and next prime (2220887).

It is a cyclic number.

It is not a de Polignac number, because 2220863 - 2¹⁰ = 2219839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220893) 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, 65303 + ... + 65336.

It is an arithmetic number, because the mean of its divisors is an integer number (587880).

2^2220863 is an apocalyptic number.

2220863 is a deficient number, since it is larger than the sum of its proper divisors (130657).

2220863 is a wasteful number, since it uses less digits than its factorization.

2220863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130656.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2220863 is about 1490.2560182734. The cubic root of 2220863 is about 130.4689767371.

The spelling of 2220863 in words is "two million, two hundred twenty thousand, eight hundred sixty-three".