889218386 has 12 divisors (see below), whose sum is σ = 1551595518. Its totient is φ = 381093552.

The previous prime is 889218367. The next prime is 889218389. The reversal of 889218386 is 683812988.

It can be written as a sum of positive squares in only one way, i.e., 841870225 + 47348161 = 29015^2 + 6881^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (889218389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4536731 + ... + 4536926.

Almost surely, 2^889218386 is an apocalyptic number.

889218386 is a deficient number, since it is larger than the sum of its proper divisors (662377132).

889218386 is a wasteful number, since it uses less digits than its factorization.

889218386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9073673 (or 9073666 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 53.

The square root of 889218386 is about 29819.7650225484. The cubic root of 889218386 is about 961.6185031284.

The spelling of 889218386 in words is "eight hundred eighty-nine million, two hundred eighteen thousand, three hundred eighty-six".