889394688 has 480 divisors, whose sum is σ = 3330724320. Its totient is φ = 232243200.

The previous prime is 889394687. The next prime is 889394689. The reversal of 889394688 is 886493988.

889394688 is a `hidden beast` number, since 88 + 93 + 9 + 468 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (889394687) and next prime (889394689).

It is a super-2 number, since 2×889394688² = 1582045822085234688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889394687) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8805838 + ... + 8805938.

It is an arithmetic number, because the mean of its divisors is an integer number (6939009).

Almost surely, 2^889394688 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 889394688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1665362160).

889394688 is an abundant number, since it is smaller than the sum of its proper divisors (2441329632).

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

889394688 is a wasteful number, since it uses less digits than its factorization.

889394688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 126 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 63.

The square root of 889394688 is about 29822.7210026181. The cubic root of 889394688 is about 961.6820510955.

The spelling of 889394688 in words is "eight hundred eighty-nine million, three hundred ninety-four thousand, six hundred eighty-eight".