854651 has 8 divisors (see below), whose sum is σ = 989184. Its totient is φ = 723240.

The previous prime is 854647. The next prime is 854683. The reversal of 854651 is 156458.

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 854651 - 2² = 854647 is a prime.

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

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 in 7 ways as a sum of consecutive naturals, for example, 155 + ... + 1316.

It is an arithmetic number, because the mean of its divisors is an integer number (123648).

2⁸⁵⁴⁶⁵¹ is an apocalyptic number.

854651 is a deficient number, since it is larger than the sum of its proper divisors (134533).

854651 is a wasteful number, since it uses less digits than its factorization.

854651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561.

The product of its digits is 4800, while the sum is 29.

The square root of 854651 is about 924.4733635968. The cubic root of 854651 is about 94.8992838432.

The spelling of 854651 in words is "eight hundred fifty-four thousand, six hundred fifty-one".