889745831 has 8 divisors (see below), whose sum is σ = 958609344. Its totient is φ = 820942560.

The previous prime is 889745713. The next prime is 889745833. The reversal of 889745831 is 138547988.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889745831 is a prime.

It is a super-2 number, since 2×889745831² = 1583295287563761122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889745833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18386 + ... + 46016.

It is an arithmetic number, because the mean of its divisors is an integer number (119826168).

Almost surely, 2^889745831 is an apocalyptic number.

889745831 is a deficient number, since it is larger than the sum of its proper divisors (68863513).

889745831 is a wasteful number, since it uses less digits than its factorization.

889745831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30121.

The product of its digits is 1935360, while the sum is 53.

The square root of 889745831 is about 29828.6075940531. The cubic root of 889745831 is about 961.8085953972.

The spelling of 889745831 in words is "eight hundred eighty-nine million, seven hundred forty-five thousand, eight hundred thirty-one".