220819983 has 4 divisors (see below), whose sum is σ = 294426648. Its totient is φ = 147213320.

The previous prime is 220819969. The next prime is 220819993. The reversal of 220819983 is 389918022.

220819983 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.

It is a cyclic number.

It is not a de Polignac number, because 220819983 - 2¹⁰ = 220818959 is a prime.

It is a super-2 number, since 2×220819983² = 97522929784240578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220819903) 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, 36803328 + ... + 36803333.

It is an arithmetic number, because the mean of its divisors is an integer number (73606662).

Almost surely, 2^220819983 is an apocalyptic number.

220819983 is a deficient number, since it is larger than the sum of its proper divisors (73606665).

220819983 is an equidigital number, since it uses as much as digits as its factorization.

220819983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73606664.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 220819983 is about 14860.0128869392. The cubic root of 220819983 is about 604.4301562414.

The spelling of 220819983 in words is "two hundred twenty million, eight hundred nineteen thousand, nine hundred eighty-three".