827397668 has 12 divisors (see below), whose sum is σ = 1451076480. Its totient is φ = 412804392.

The previous prime is 827397647. The next prime is 827397677. The reversal of 827397668 is 866793728.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221528 + ... + 225231.

It is an arithmetic number, because the mean of its divisors is an integer number (120923040).

Almost surely, 2^827397668 is an apocalyptic number.

It is an amenable number.

827397668 is a deficient number, since it is larger than the sum of its proper divisors (623678812).

827397668 is a wasteful number, since it uses less digits than its factorization.

827397668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447226 (or 447224 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 56.

The square root of 827397668 is about 28764.5209937520. The cubic root of 827397668 is about 938.7964330642.

The spelling of 827397668 in words is "eight hundred twenty-seven million, three hundred ninety-seven thousand, six hundred sixty-eight".