195687 has 12 divisors (see below), whose sum is σ = 299520. Its totient is φ = 122688.

The previous prime is 195677. The next prime is 195691. The reversal of 195687 is 786591.

It is a de Polignac number, because none of the positive numbers 2^k-195687 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 195687.

It is not an unprimeable number, because it can be changed into a prime (195677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 487 + ... + 792.

It is an arithmetic number, because the mean of its divisors is an integer number (24960).

2¹⁹⁵⁶⁸⁷ is an apocalyptic number.

195687 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

195687 is a deficient number, since it is larger than the sum of its proper divisors (103833).

195687 is a wasteful number, since it uses less digits than its factorization.

195687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302 (or 1299 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 195687 is about 442.3652337153. The cubic root of 195687 is about 58.0569199442.

The spelling of 195687 in words is "one hundred ninety-five thousand, six hundred eighty-seven".