194823 has 6 divisors (see below), whose sum is σ = 281424. Its totient is φ = 129876.

The previous prime is 194819. The next prime is 194827. The reversal of 194823 is 328491.

It is an interprime number because it is at equal distance from previous prime (194819) and next prime (194827).

It is not a de Polignac number, because 194823 - 2² = 194819 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 194823.

It is not an unprimeable number, because it can be changed into a prime (194827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10815 + ... + 10832.

It is an arithmetic number, because the mean of its divisors is an integer number (46904).

194823 is a Friedman number, since it can be written as 21^4+38*9, using all its digits and the basic arithmetic operations.

2¹⁹⁴⁸²³ is an apocalyptic number.

194823 is a deficient number, since it is larger than the sum of its proper divisors (86601).

194823 is a wasteful number, since it uses less digits than its factorization.

194823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21653 (or 21650 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 194823 is about 441.3875847824. The cubic root of 194823 is about 57.9713493057.

The spelling of 194823 in words is "one hundred ninety-four thousand, eight hundred twenty-three".