194807 has 4 divisors (see below), whose sum is σ = 205080. Its totient is φ = 184536.

The previous prime is 194771. The next prime is 194809. The reversal of 194807 is 708491.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 194807 - 2¹² = 190711 is a prime.

It is an Ulam number.

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 194807.

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 194807.

It is not an unprimeable number, because it can be changed into a prime (194809) 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 3 ways as a sum of consecutive naturals, for example, 5108 + ... + 5145.

It is an arithmetic number, because the mean of its divisors is an integer number (51270).

2¹⁹⁴⁸⁰⁷ is an apocalyptic number.

194807 is a deficient number, since it is larger than the sum of its proper divisors (10273).

194807 is a wasteful number, since it uses less digits than its factorization.

194807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10272.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 194807 is about 441.3694597500. The cubic root of 194807 is about 57.9697622806.

It can be divided in two parts, 194 and 807, that added together give a palindrome (1001).

The spelling of 194807 in words is "one hundred ninety-four thousand, eight hundred seven".