827068691 has 8 divisors (see below), whose sum is σ = 830527200. Its totient is φ = 823618368.

The previous prime is 827068681. The next prime is 827068721. The reversal of 827068691 is 196860728.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-827068691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (827068681) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 269735 + ... + 272783.

It is an arithmetic number, because the mean of its divisors is an integer number (103815900).

Almost surely, 2^827068691 is an apocalyptic number.

827068691 is a deficient number, since it is larger than the sum of its proper divisors (3458509).

827068691 is a wasteful number, since it uses less digits than its factorization.

827068691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 827068691 is about 28758.8019743521. The cubic root of 827068691 is about 938.6719933550.

The spelling of 827068691 in words is "eight hundred twenty-seven million, sixty-eight thousand, six hundred ninety-one".