220867 has 4 divisors (see below), whose sum is σ = 226296. Its totient is φ = 215440.

The previous prime is 220861. The next prime is 220873. The reversal of 220867 is 768022.

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 (220861) and next prime (220873).

It is a cyclic number.

It is not a de Polignac number, because 220867 - 2³ = 220859 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 (220861) 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 3 ways as a sum of consecutive naturals, for example, 2653 + ... + 2734.

It is an arithmetic number, because the mean of its divisors is an integer number (56574).

2²²⁰⁸⁶⁷ is an apocalyptic number.

220867 is a deficient number, since it is larger than the sum of its proper divisors (5429).

220867 is an equidigital number, since it uses as much as digits as its factorization.

220867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5428.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 220867 is about 469.9648923058. The cubic root of 220867 is about 60.4473051628.

Adding to 220867 its reverse (768022), we get a palindrome (988889).

The spelling of 220867 in words is "two hundred twenty thousand, eight hundred sixty-seven".