889946512 has 80 divisors (see below), whose sum is σ = 2190748672. Its totient is φ = 340692480.

The previous prime is 889946503. The next prime is 889946513. The reversal of 889946512 is 215649988.

It is a super-2 number, since 2×889946512² = 1584009588441932288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 889946512.

It is not an unprimeable number, because it can be changed into a prime (889946513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35278 + ... + 54994.

Almost surely, 2^889946512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889946512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1095374336).

889946512 is an abundant number, since it is smaller than the sum of its proper divisors (1300802160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

889946512 is a wasteful number, since it uses less digits than its factorization.

889946512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19776 (or 19770 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 52.

The square root of 889946512 is about 29831.9713059664. The cubic root of 889946512 is about 961.8809015152.

The spelling of 889946512 in words is "eight hundred eighty-nine million, nine hundred forty-six thousand, five hundred twelve".