220854823 has 18 divisors (see below), whose sum is σ = 260614088. Its totient is φ = 183338880.

The previous prime is 220854817. The next prime is 220854839. The reversal of 220854823 is 328458022.

It is a happy number.

It is not a de Polignac number, because 220854823 - 2²⁵ = 187300391 is a prime.

It is a super-2 number, since 2×220854823² = 97553705684722658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220854853) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1612011 + ... + 1612147.

Almost surely, 2^220854823 is an apocalyptic number.

220854823 is a deficient number, since it is larger than the sum of its proper divisors (39759265).

220854823 is an frugal number, since it uses more digits than its factorization.

220854823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 220854823 is about 14861.1851142498. The cubic root of 220854823 is about 604.4619426751.

The spelling of 220854823 in words is "two hundred twenty million, eight hundred fifty-four thousand, eight hundred twenty-three".