220823863 has 32 divisors (see below), whose sum is σ = 259459200. Its totient is φ = 186126336.

The previous prime is 220823857. The next prime is 220823899. The reversal of 220823863 is 368328022.

It is not a de Polignac number, because 220823863 - 2¹³ = 220815671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220823563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2025853 + ... + 2025961.

It is an arithmetic number, because the mean of its divisors is an integer number (8108100).

Almost surely, 2^220823863 is an apocalyptic number.

220823863 is a deficient number, since it is larger than the sum of its proper divisors (38635337).

220823863 is a wasteful number, since it uses less digits than its factorization.

220823863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 220823863 is about 14860.1434380695. The cubic root of 220823863 is about 604.4336963426.

The spelling of 220823863 in words is "two hundred twenty million, eight hundred twenty-three thousand, eight hundred sixty-three".