857357 has 2 divisors, whose sum is σ = 857358. Its totient is φ = 857356.

The previous prime is 857347. The next prime is 857369. The reversal of 857357 is 753758.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 784996 + 72361 = 886^2 + 269^2 .

It is a cyclic number.

It is not a de Polignac number, because 857357 - 2⁴ = 857341 is a prime.

It is a super-2 number, since 2×857357² = 1470122050898, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (857347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428678 + 428679.

It is an arithmetic number, because the mean of its divisors is an integer number (428679).

2⁸⁵⁷³⁵⁷ is an apocalyptic number.

It is an amenable number.

857357 is a deficient number, since it is larger than the sum of its proper divisors (1).

857357 is an equidigital number, since it uses as much as digits as its factorization.

857357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 35.

The square root of 857357 is about 925.9357429109. The cubic root of 857357 is about 94.9993351754. Note that the first 3 decimals are identical.

The spelling of 857357 in words is "eight hundred fifty-seven thousand, three hundred fifty-seven".