196605 has 24 divisors (see below), whose sum is σ = 362232. Its totient is φ = 98304.

The previous prime is 196597. The next prime is 196613. The reversal of 196605 is 506691.

196605 is nontrivially palindromic in base 2 and base 8.

It is an interprime number because it is at equal distance from previous prime (196597) and next prime (196613).

It can be written as a sum of positive squares in 4 ways, for example, as 101124 + 95481 = 318^2 + 309^2 .

It is not a de Polignac number, because 196605 - 2³ = 196597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 637 + ... + 893.

It is an arithmetic number, because the mean of its divisors is an integer number (15093).

2¹⁹⁶⁶⁰⁵ is an apocalyptic number.

196605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

196605 is a deficient number, since it is larger than the sum of its proper divisors (165627).

196605 is a wasteful number, since it uses less digits than its factorization.

196605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 196605 is about 443.4016238130. The cubic root of 196605 is about 58.1475632138.

The spelling of 196605 in words is "one hundred ninety-six thousand, six hundred five".