220886889 has 4 divisors (see below), whose sum is σ = 294515856. Its totient is φ = 147257924.

The previous prime is 220886879. The next prime is 220886903. The reversal of 220886889 is 988688022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220886889 - 2¹¹ = 220884841 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220886819) 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, 36814479 + ... + 36814484.

It is an arithmetic number, because the mean of its divisors is an integer number (73628964).

Almost surely, 2^220886889 is an apocalyptic number.

It is an amenable number.

220886889 is a deficient number, since it is larger than the sum of its proper divisors (73628967).

220886889 is an equidigital number, since it uses as much as digits as its factorization.

220886889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73628966.

The product of its (nonzero) digits is 884736, while the sum is 51.

The square root of 220886889 is about 14862.2639257954. The cubic root of 220886889 is about 604.4911952831.

The spelling of 220886889 in words is "two hundred twenty million, eight hundred eighty-six thousand, eight hundred eighty-nine".