814885 has 8 divisors (see below), whose sum is σ = 990720. Its totient is φ = 643344.

The previous prime is 814883. The next prime is 814889. The reversal of 814885 is 588418.

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 814885 - 2¹ = 814883 is a prime.

814885 is a lucky number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 814885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814883) 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, 637 + ... + 1426.

It is an arithmetic number, because the mean of its divisors is an integer number (123840).

2⁸¹⁴⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

814885 is a deficient number, since it is larger than the sum of its proper divisors (175835).

814885 is a wasteful number, since it uses less digits than its factorization.

814885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147.

The product of its digits is 10240, while the sum is 34.

The square root of 814885 is about 902.7098094072. The cubic root of 814885 is about 93.4039926946.

The spelling of 814885 in words is "eight hundred fourteen thousand, eight hundred eighty-five".