857914 has 4 divisors (see below), whose sum is σ = 1286874. Its totient is φ = 428956.

The previous prime is 857903. The next prime is 857929. The reversal of 857914 is 419758.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 693889 + 164025 = 833^2 + 405^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 857914.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 214477 + ... + 214480.

2⁸⁵⁷⁹¹⁴ is an apocalyptic number.

857914 is a deficient number, since it is larger than the sum of its proper divisors (428960).

857914 is a wasteful number, since it uses less digits than its factorization.

857914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428959.

The product of its digits is 10080, while the sum is 34.

The square root of 857914 is about 926.2364708863. The cubic root of 857914 is about 95.0199034936.

It can be divided in two parts, 857 and 914, that added together give a palindrome (1771).

The spelling of 857914 in words is "eight hundred fifty-seven thousand, nine hundred fourteen".