223820885 has 4 divisors (see below), whose sum is σ = 268585068. Its totient is φ = 179056704.

The previous prime is 223820879. The next prime is 223820887. The reversal of 223820885 is 588028322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43375396 + 180445489 = 6586^2 + 13433^2 .

It is a cyclic number.

It is not a de Polignac number, because 223820885 - 2¹⁶ = 223755349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223820887) 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, 22382084 + ... + 22382093.

It is an arithmetic number, because the mean of its divisors is an integer number (67146267).

Almost surely, 2^223820885 is an apocalyptic number.

It is an amenable number.

223820885 is a deficient number, since it is larger than the sum of its proper divisors (44764183).

223820885 is an equidigital number, since it uses as much as digits as its factorization.

223820885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44764182.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 223820885 is about 14960.6445382544. The cubic root of 223820885 is about 607.1558766165.

The spelling of 223820885 in words is "two hundred twenty-three million, eight hundred twenty thousand, eight hundred eighty-five".