889667520 has 168 divisors, whose sum is σ = 3286042704. Its totient is φ = 203341824.

The previous prime is 889667491. The next prime is 889667521. The reversal of 889667520 is 25766988.

889667520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×889667520² = 1583016592285900800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889667521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37584 + ... + 56496.

It is an arithmetic number, because the mean of its divisors is an integer number (19559778).

Almost surely, 2^889667520 is an apocalyptic number.

889667520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889667520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1643021352).

889667520 is an abundant number, since it is smaller than the sum of its proper divisors (2396375184).

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

889667520 is a wasteful number, since it uses less digits than its factorization.

889667520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18947 (or 18930 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 889667520 is about 29827.2948823724. The cubic root of 889667520 is about 961.7803767007.

The spelling of 889667520 in words is "eight hundred eighty-nine million, six hundred sixty-seven thousand, five hundred twenty".