827138828 has 12 divisors (see below), whose sum is σ = 1447847352. Its totient is φ = 413468160.

The previous prime is 827138827. The next prime is 827138843. The reversal of 827138828 is 828831728.

It is not an unprimeable number, because it can be changed into a prime (827138827) 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, 5150 + ... + 40997.

It is an arithmetic number, because the mean of its divisors is an integer number (120653946).

Almost surely, 2^827138828 is an apocalyptic number.

It is an amenable number.

827138828 is a deficient number, since it is larger than the sum of its proper divisors (620708524).

827138828 is a wasteful number, since it uses less digits than its factorization.

827138828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50632 (or 50630 counting only the distinct ones).

The product of its digits is 344064, while the sum is 47.

The square root of 827138828 is about 28760.0213490880. The cubic root of 827138828 is about 938.6985263292.

The spelling of 827138828 in words is "eight hundred twenty-seven million, one hundred thirty-eight thousand, eight hundred twenty-eight".