857107 has 2 divisors, whose sum is σ = 857108. Its totient is φ = 857106.

The previous prime is 857099. The next prime is 857137. The reversal of 857107 is 701758.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 857107 - 2³ = 857099 is a prime.

It is not a weakly prime, because it can be changed into another prime (857137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428553 + 428554.

It is an arithmetic number, because the mean of its divisors is an integer number (428554).

2⁸⁵⁷¹⁰⁷ is an apocalyptic number.

857107 is a deficient number, since it is larger than the sum of its proper divisors (1).

857107 is an equidigital number, since it uses as much as digits as its factorization.

857107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 857107 is about 925.8007344996. The cubic root of 857107 is about 94.9901005382.

The spelling of 857107 in words is "eight hundred fifty-seven thousand, one hundred seven".