853345 has 4 divisors (see below), whose sum is σ = 1024020. Its totient is φ = 682672.

The previous prime is 853339. The next prime is 853357. The reversal of 853345 is 543358.

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

It can be written as a sum of positive squares in 2 ways, for example, as 665856 + 187489 = 816^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 853345 - 2⁷ = 853217 is a prime.

853345 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85330 + ... + 85339.

It is an arithmetic number, because the mean of its divisors is an integer number (256005).

853345 is a Friedman number, since it can be written as (35+(8*5)^4)/3, using all its digits and the basic arithmetic operations.

2⁸⁵³³⁴⁵ is an apocalyptic number.

It is an amenable number.

853345 is a deficient number, since it is larger than the sum of its proper divisors (170675).

853345 is a wasteful number, since it uses less digits than its factorization.

853345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170674.

The product of its digits is 7200, while the sum is 28.

The square root of 853345 is about 923.7667454504. The cubic root of 853345 is about 94.8509203791.

The spelling of 853345 in words is "eight hundred fifty-three thousand, three hundred forty-five".