889444147 has 4 divisors (see below), whose sum is σ = 913483216. Its totient is φ = 865405080.

The previous prime is 889444133. The next prime is 889444159. The reversal of 889444147 is 741444988.

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 889444147 - 2¹⁵ = 889411379 is a prime.

It is a super-2 number, since 2×889444147² = 1582221781265115218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 889444147.

It is not an unprimeable number, because it can be changed into a prime (889444187) 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, 12019479 + ... + 12019552.

It is an arithmetic number, because the mean of its divisors is an integer number (228370804).

Almost surely, 2^889444147 is an apocalyptic number.

889444147 is a deficient number, since it is larger than the sum of its proper divisors (24039069).

889444147 is a wasteful number, since it uses less digits than its factorization.

889444147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24039068.

The product of its digits is 1032192, while the sum is 49.

The square root of 889444147 is about 29823.5502078475. The cubic root of 889444147 is about 961.6998770587.

The spelling of 889444147 in words is "eight hundred eighty-nine million, four hundred forty-four thousand, one hundred forty-seven".