889144923 has 4 divisors (see below), whose sum is σ = 1185526568. Its totient is φ = 592763280.

The previous prime is 889144889. The next prime is 889144961. The reversal of 889144923 is 329441988.

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

It is not a de Polignac number, because 889144923 - 2⁸ = 889144667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889144973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148190818 + ... + 148190823.

It is an arithmetic number, because the mean of its divisors is an integer number (296381642).

Almost surely, 2^889144923 is an apocalyptic number.

889144923 is a deficient number, since it is larger than the sum of its proper divisors (296381645).

889144923 is a wasteful number, since it uses less digits than its factorization.

889144923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296381644.

The product of its digits is 497664, while the sum is 48.

The square root of 889144923 is about 29818.5332134228. The cubic root of 889144923 is about 961.5920209478.

The spelling of 889144923 in words is "eight hundred eighty-nine million, one hundred forty-four thousand, nine hundred twenty-three".