866930688 has 312 divisors, whose sum is σ = 2838410848. Its totient is φ = 262766592.

The previous prime is 866930677. The next prime is 866930707. The reversal of 866930688 is 886039668.

It is a tau number, because it is divible by the number of its divisors (312).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12939231 + ... + 12939297.

Almost surely, 2^866930688 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 866930688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1419205424).

866930688 is an abundant number, since it is smaller than the sum of its proper divisors (1971480160).

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

866930688 is an equidigital number, since it uses as much as digits as its factorization.

866930688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 866930688 is about 29443.6867256803. The cubic root of 866930688 is about 953.5163087370.

The spelling of 866930688 in words is "eight hundred sixty-six million, nine hundred thirty thousand, six hundred eighty-eight".