220590689 has 4 divisors (see below), whose sum is σ = 240644400. Its totient is φ = 200536980.

The previous prime is 220590641. The next prime is 220590737. The reversal of 220590689 is 986095022.

220590689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (220590641) and next prime (220590737).

It is a cyclic number.

It is not a de Polignac number, because 220590689 - 2¹² = 220586593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220592689) 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, 10026839 + ... + 10026860.

It is an arithmetic number, because the mean of its divisors is an integer number (60161100).

Almost surely, 2^220590689 is an apocalyptic number.

It is an amenable number.

220590689 is a deficient number, since it is larger than the sum of its proper divisors (20053711).

220590689 is a wasteful number, since it uses less digits than its factorization.

220590689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20053710.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 220590689 is about 14852.2957484693. The cubic root of 220590689 is about 604.2208753537.

The spelling of 220590689 in words is "two hundred twenty million, five hundred ninety thousand, six hundred eighty-nine".