196688355 has 16 divisors (see below), whose sum is σ = 317948064. Its totient is φ = 103818240.

The previous prime is 196688333. The next prime is 196688383. The reversal of 196688355 is 553886691.

It is not a de Polignac number, because 196688355 - 2¹² = 196684259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196688298 and 196688307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66136 + ... + 69045.

It is an arithmetic number, because the mean of its divisors is an integer number (19871754).

Almost surely, 2^196688355 is an apocalyptic number.

196688355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

196688355 is a deficient number, since it is larger than the sum of its proper divisors (121259709).

196688355 is a wasteful number, since it uses less digits than its factorization.

196688355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135286.

The product of its digits is 1555200, while the sum is 51.

The square root of 196688355 is about 14024.5625600230. The cubic root of 196688355 is about 581.5577969748.

It can be divided in two parts, 196 and 688355, that added together give a triangular number (688551 = T₁₁₇₃).

The spelling of 196688355 in words is "one hundred ninety-six million, six hundred eighty-eight thousand, three hundred fifty-five".