196664963 has 4 divisors (see below), whose sum is σ = 214543608. Its totient is φ = 178786320.

The previous prime is 196664957. The next prime is 196664969. The reversal of 196664963 is 369466691.

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

It is an interprime number because it is at equal distance from previous prime (196664957) and next prime (196664969).

It is a cyclic number.

It is not a de Polignac number, because 196664963 - 2⁴ = 196664947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196664969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8939306 + ... + 8939327.

It is an arithmetic number, because the mean of its divisors is an integer number (53635902).

Almost surely, 2^196664963 is an apocalyptic number.

196664963 is a deficient number, since it is larger than the sum of its proper divisors (17878645).

196664963 is a wasteful number, since it uses less digits than its factorization.

196664963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17878644.

The product of its digits is 1259712, while the sum is 50.

The square root of 196664963 is about 14023.7285698205. The cubic root of 196664963 is about 581.5347413151.

The spelling of 196664963 in words is "one hundred ninety-six million, six hundred sixty-four thousand, nine hundred sixty-three".