857544068 has 6 divisors (see below), whose sum is σ = 1500702126. Its totient is φ = 428772032.

The previous prime is 857544059. The next prime is 857544089. The reversal of 857544068 is 860445758.

It can be written as a sum of positive squares in only one way, i.e., 710115904 + 147428164 = 26648^2 + 12142^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107193005 + ... + 107193012.

It is an arithmetic number, because the mean of its divisors is an integer number (250117021).

Almost surely, 2^857544068 is an apocalyptic number.

It is an amenable number.

857544068 is a deficient number, since it is larger than the sum of its proper divisors (643158058).

857544068 is a wasteful number, since it uses less digits than its factorization.

857544068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214386021 (or 214386019 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 47.

The square root of 857544068 is about 29283.8533666592. The cubic root of 857544068 is about 950.0624402173.

The spelling of 857544068 in words is "eight hundred fifty-seven million, five hundred forty-four thousand, sixty-eight".