220695 has 8 divisors (see below), whose sum is σ = 353136. Its totient is φ = 117696.

The previous prime is 220687. The next prime is 220699. The reversal of 220695 is 596022.

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

It is not a de Polignac number, because 220695 - 2³ = 220687 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

220695 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220695.

It is not an unprimeable number, because it can be changed into a prime (220699) 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 7 ways as a sum of consecutive naturals, for example, 7342 + ... + 7371.

It is an arithmetic number, because the mean of its divisors is an integer number (44142).

2²²⁰⁶⁹⁵ is an apocalyptic number.

220695 is a deficient number, since it is larger than the sum of its proper divisors (132441).

220695 is a wasteful number, since it uses less digits than its factorization.

220695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14721.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 220695 is about 469.7818642732. The cubic root of 220695 is about 60.4316099911.

The spelling of 220695 in words is "two hundred twenty thousand, six hundred ninety-five".