854663 has 4 divisors (see below), whose sum is σ = 877800. Its totient is φ = 831528.

The previous prime is 854647. The next prime is 854683. The reversal of 854663 is 366458.

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

It is a cyclic number.

It is not a de Polignac number, because 854663 - 2⁴ = 854647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11513 + ... + 11586.

It is an arithmetic number, because the mean of its divisors is an integer number (219450).

2⁸⁵⁴⁶⁶³ is an apocalyptic number.

854663 is a deficient number, since it is larger than the sum of its proper divisors (23137).

854663 is a wasteful number, since it uses less digits than its factorization.

854663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23136.

The product of its digits is 17280, while the sum is 32.

The square root of 854663 is about 924.4798537556. The cubic root of 854663 is about 94.8997279957.

The spelling of 854663 in words is "eight hundred fifty-four thousand, six hundred sixty-three".