220612589 has 8 divisors (see below), whose sum is σ = 225039360. Its totient is φ = 216228096.

The previous prime is 220612571. The next prime is 220612597. The reversal of 220612589 is 985216022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220612589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220612559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77 + ... + 21005.

It is an arithmetic number, because the mean of its divisors is an integer number (28129920).

Almost surely, 2^220612589 is an apocalyptic number.

It is an amenable number.

220612589 is a deficient number, since it is larger than the sum of its proper divisors (4426771).

220612589 is a wasteful number, since it uses less digits than its factorization.

220612589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21139.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 220612589 is about 14853.0329899317. The cubic root of 220612589 is about 604.2408701525.

The spelling of 220612589 in words is "two hundred twenty million, six hundred twelve thousand, five hundred eighty-nine".