196644935 has 16 divisors (see below), whose sum is σ = 247726080. Its totient is φ = 149653920.

The previous prime is 196644923. The next prime is 196644953. The reversal of 196644935 is 539446691.

It is a happy number.

It is not a de Polignac number, because 196644935 - 2⁴ = 196644919 is a prime.

It is a super-2 number, since 2×196644935² = 77338460922308450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 196644935.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1607 + ... + 19896.

It is an arithmetic number, because the mean of its divisors is an integer number (15482880).

Almost surely, 2^196644935 is an apocalyptic number.

196644935 is a deficient number, since it is larger than the sum of its proper divisors (51081145).

196644935 is a wasteful number, since it uses less digits than its factorization.

196644935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21598.

The product of its digits is 699840, while the sum is 47.

The square root of 196644935 is about 14023.0144762102. The cubic root of 196644935 is about 581.5149998336.

The spelling of 196644935 in words is "one hundred ninety-six million, six hundred forty-four thousand, nine hundred thirty-five".