854661 has 8 divisors (see below), whose sum is σ = 1144224. Its totient is φ = 567440.

The previous prime is 854647. The next prime is 854683. The reversal of 854661 is 166458.

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

It is a cyclic number.

It is not a de Polignac number, because 854661 - 2⁵ = 854629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631 + ... + 1451.

It is an arithmetic number, because the mean of its divisors is an integer number (143028).

2⁸⁵⁴⁶⁶¹ is an apocalyptic number.

It is an amenable number.

854661 is a deficient number, since it is larger than the sum of its proper divisors (289563).

854661 is a wasteful number, since it uses less digits than its factorization.

854661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171.

The product of its digits is 5760, while the sum is 30.

The square root of 854661 is about 924.4787720656. The cubic root of 854661 is about 94.8996539705.

The spelling of 854661 in words is "eight hundred fifty-four thousand, six hundred sixty-one".