827680188 has 12 divisors (see below), whose sum is σ = 1931253800. Its totient is φ = 275893392.

The previous prime is 827680187. The next prime is 827680193. The reversal of 827680188 is 881086728.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827680187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34486663 + ... + 34486686.

Almost surely, 2^827680188 is an apocalyptic number.

It is an amenable number.

827680188 is an abundant number, since it is smaller than the sum of its proper divisors (1103573612).

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

827680188 is a wasteful number, since it uses less digits than its factorization.

827680188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68973356 (or 68973354 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 48.

The square root of 827680188 is about 28769.4314855195. The cubic root of 827680188 is about 938.9032735015.

The spelling of 827680188 in words is "eight hundred twenty-seven million, six hundred eighty thousand, one hundred eighty-eight".