855023 has 8 divisors (see below), whose sum is σ = 932400. Its totient is φ = 779328.

The previous prime is 854999. The next prime is 855031. The reversal of 855023 is 320558.

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 855023 - 2¹⁰ = 853999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 855023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 788 + ... + 1526.

It is an arithmetic number, because the mean of its divisors is an integer number (116550).

2⁸⁵⁵⁰²³ is an apocalyptic number.

855023 is a deficient number, since it is larger than the sum of its proper divisors (77377).

855023 is a wasteful number, since it uses less digits than its factorization.

855023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 855023 is about 924.6745373373. The cubic root of 855023 is about 94.9130506372.

The spelling of 855023 in words is "eight hundred fifty-five thousand, twenty-three".