889967231 has 16 divisors (see below), whose sum is σ = 926062080. Its totient is φ = 854694720.

The previous prime is 889967219. The next prime is 889967291. The reversal of 889967231 is 132769988.

It is a cyclic number.

It is not a de Polignac number, because 889967231 - 2¹⁸ = 889705087 is a prime.

It is a super-2 number, since 2×889967231² = 1584083344507614722, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889967291) 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, 1287596 + ... + 1288286.

It is an arithmetic number, because the mean of its divisors is an integer number (57878880).

Almost surely, 2^889967231 is an apocalyptic number.

889967231 is a deficient number, since it is larger than the sum of its proper divisors (36094849).

889967231 is a wasteful number, since it uses less digits than its factorization.

889967231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214.

The product of its digits is 1306368, while the sum is 53.

The square root of 889967231 is about 29832.3185656093. The cubic root of 889967231 is about 961.8883660296. Note that the first 3 decimals are identical.

The spelling of 889967231 in words is "eight hundred eighty-nine million, nine hundred sixty-seven thousand, two hundred thirty-one".