196986533 has 4 divisors (see below), whose sum is σ = 199017420. Its totient is φ = 194955648.

The previous prime is 196986529. The next prime is 196986539. The reversal of 196986533 is 335689691.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32069569 + 164916964 = 5663^2 + 12842^2 .

It is a cyclic number.

It is not a de Polignac number, because 196986533 - 2² = 196986529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196986539) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1015298 + ... + 1015491.

It is an arithmetic number, because the mean of its divisors is an integer number (49754355).

Almost surely, 2^196986533 is an apocalyptic number.

It is an amenable number.

196986533 is a deficient number, since it is larger than the sum of its proper divisors (2030887).

196986533 is an equidigital number, since it uses as much as digits as its factorization.

196986533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030886.

The product of its digits is 1049760, while the sum is 50.

The square root of 196986533 is about 14035.1890974080. The cubic root of 196986533 is about 581.8515276099.

The spelling of 196986533 in words is "one hundred ninety-six million, nine hundred eighty-six thousand, five hundred thirty-three".