827881216 has 36 divisors (see below), whose sum is σ = 1697210872. Its totient is φ = 402748416.

The previous prime is 827881189. The next prime is 827881217. The reversal of 827881216 is 612188728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827881217) 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, 34230 + ... + 53173.

Almost surely, 2^827881216 is an apocalyptic number.

It is an amenable number.

827881216 is an abundant number, since it is smaller than the sum of its proper divisors (869329656).

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

827881216 is an equidigital number, since it uses as much as digits as its factorization.

827881216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87456 (or 87442 counting only the distinct ones).

The product of its digits is 86016, while the sum is 43.

The square root of 827881216 is about 28772.9250511657. The cubic root of 827881216 is about 938.9792813489.

The spelling of 827881216 in words is "eight hundred twenty-seven million, eight hundred eighty-one thousand, two hundred sixteen".