868057 has 8 divisors (see below), whose sum is σ = 923400. Its totient is φ = 814464.

The previous prime is 868051. The next prime is 868069. The reversal of 868057 is 750868.

It can be written as a sum of positive squares in 4 ways, for example, as 488601 + 379456 = 699^2 + 616^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 868057 - 2¹¹ = 866009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868051) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 669 + ... + 1477.

It is an arithmetic number, because the mean of its divisors is an integer number (115425).

2⁸⁶⁸⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

868057 is a deficient number, since it is larger than the sum of its proper divisors (55343).

868057 is a wasteful number, since it uses less digits than its factorization.

868057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 868057 is about 931.6957657948. The cubic root of 868057 is about 95.3929064573.

The spelling of 868057 in words is "eight hundred sixty-eight thousand, fifty-seven".