853257 has 8 divisors (see below), whose sum is σ = 1168576. Its totient is φ = 553392.

The previous prime is 853241. The next prime is 853283. The reversal of 853257 is 752358.

It is a happy number.

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

It is not a de Polignac number, because 853257 - 2⁴ = 853241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (853217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3733 + ... + 3954.

It is an arithmetic number, because the mean of its divisors is an integer number (146072).

2⁸⁵³²⁵⁷ is an apocalyptic number.

It is an amenable number.

853257 is a deficient number, since it is larger than the sum of its proper divisors (315319).

853257 is a wasteful number, since it uses less digits than its factorization.

853257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7727.

The product of its digits is 8400, while the sum is 30.

The square root of 853257 is about 923.7191131507. The cubic root of 853257 is about 94.8476598112.

The spelling of 853257 in words is "eight hundred fifty-three thousand, two hundred fifty-seven".