196803687 has 4 divisors (see below), whose sum is σ = 262404920. Its totient is φ = 131202456.

The previous prime is 196803667. The next prime is 196803697. The reversal of 196803687 is 786308691.

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

It is not a de Polignac number, because 196803687 - 2⁶ = 196803623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196803667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32800612 + ... + 32800617.

It is an arithmetic number, because the mean of its divisors is an integer number (65601230).

Almost surely, 2^196803687 is an apocalyptic number.

196803687 is a deficient number, since it is larger than the sum of its proper divisors (65601233).

196803687 is an equidigital number, since it uses as much as digits as its factorization.

196803687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65601232.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 196803687 is about 14028.6737434442. The cubic root of 196803687 is about 581.6714439646.

The spelling of 196803687 in words is "one hundred ninety-six million, eight hundred three thousand, six hundred eighty-seven".