889831947 has 16 divisors (see below), whose sum is σ = 1198909728. Its totient is φ = 587005440.

The previous prime is 889831939. The next prime is 889831951. The reversal of 889831947 is 749138988.

It is not a de Polignac number, because 889831947 - 2³ = 889831939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (889831927) 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, 246697 + ... + 250277.

It is an arithmetic number, because the mean of its divisors is an integer number (74931858).

Almost surely, 2^889831947 is an apocalyptic number.

889831947 is a deficient number, since it is larger than the sum of its proper divisors (309077781).

889831947 is a wasteful number, since it uses less digits than its factorization.

889831947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430.

The product of its digits is 3483648, while the sum is 57.

The square root of 889831947 is about 29830.0510727018. The cubic root of 889831947 is about 961.8396246470.

The spelling of 889831947 in words is "eight hundred eighty-nine million, eight hundred thirty-one thousand, nine hundred forty-seven".