220827 has 4 divisors (see below), whose sum is σ = 294440. Its totient is φ = 147216.

The previous prime is 220811. The next prime is 220841. The reversal of 220827 is 728022.

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

It is not a de Polignac number, because 220827 - 2⁴ = 220811 is a prime.

It is a D-number.

It is a Duffinian number.

220827 is a lucky number.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220827.

It is not an unprimeable number, because it can be changed into a prime (220807) 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, 36802 + ... + 36807.

It is an arithmetic number, because the mean of its divisors is an integer number (73610).

2²²⁰⁸²⁷ is an apocalyptic number.

220827 is a deficient number, since it is larger than the sum of its proper divisors (73613).

220827 is an equidigital number, since it uses as much as digits as its factorization.

220827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73612.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 220827 is about 469.9223340085. The cubic root of 220827 is about 60.4436558502.

Adding to 220827 its reverse (728022), we get a palindrome (948849).

The spelling of 220827 in words is "two hundred twenty thousand, eight hundred twenty-seven".