853723 has 8 divisors (see below), whose sum is σ = 973728. Its totient is φ = 741504.

The previous prime is 853717. The next prime is 853733. The reversal of 853723 is 327358.

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 853723 - 2⁹ = 853211 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 853691 and 853700.

It is not an unprimeable number, because it can be changed into a prime (853703) 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, 1711 + ... + 2152.

It is an arithmetic number, because the mean of its divisors is an integer number (121716).

2⁸⁵³⁷²³ is an apocalyptic number.

853723 is a deficient number, since it is larger than the sum of its proper divisors (120005).

853723 is a wasteful number, since it uses less digits than its factorization.

853723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893.

The product of its digits is 5040, while the sum is 28.

The square root of 853723 is about 923.9713199012. The cubic root of 853723 is about 94.8649234514.

The spelling of 853723 in words is "eight hundred fifty-three thousand, seven hundred twenty-three".