223009986 has 32 divisors (see below), whose sum is σ = 450128448. Its totient is φ = 73656000.

The previous prime is 223009949. The next prime is 223009987. The reversal of 223009986 is 689900322.

223009986 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (223009987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561540 + ... + 561936.

It is an arithmetic number, because the mean of its divisors is an integer number (14066514).

Almost surely, 2^223009986 is an apocalyptic number.

223009986 is an abundant number, since it is smaller than the sum of its proper divisors (227118462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223009986 is a wasteful number, since it uses less digits than its factorization.

223009986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 223009986 is about 14933.5188753354. The cubic root of 223009986 is about 606.4217510902.

The spelling of 223009986 in words is "two hundred twenty-three million, nine thousand, nine hundred eighty-six".