196905 has 8 divisors (see below), whose sum is σ = 315072. Its totient is φ = 105008.

The previous prime is 196901. The next prime is 196907. The reversal of 196905 is 509691.

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 196905 - 2² = 196901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6549 + ... + 6578.

It is an arithmetic number, because the mean of its divisors is an integer number (39384).

2¹⁹⁶⁹⁰⁵ is an apocalyptic number.

196905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

196905 is a deficient number, since it is larger than the sum of its proper divisors (118167).

196905 is a wasteful number, since it uses less digits than its factorization.

196905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13135.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 196905 is about 443.7397886149. The cubic root of 196905 is about 58.1771240146.

The spelling of 196905 in words is "one hundred ninety-six thousand, nine hundred five".