196359921 has 24 divisors (see below), whose sum is σ = 295666176. Its totient is φ = 125435520.

The previous prime is 196359881. The next prime is 196359929. The reversal of 196359921 is 129953691.

It is a happy number.

196359921 is a `hidden beast` number, since 1 + 9 + 635 + 9 + 9 + 2 + 1 = 666.

It is not a de Polignac number, because 196359921 - 2⁹ = 196359409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196359929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25321 + ... + 32153.

It is an arithmetic number, because the mean of its divisors is an integer number (12319424).

Almost surely, 2^196359921 is an apocalyptic number.

It is an amenable number.

196359921 is a deficient number, since it is larger than the sum of its proper divisors (99306255).

196359921 is a wasteful number, since it uses less digits than its factorization.

196359921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6973 (or 6970 counting only the distinct ones).

The product of its digits is 131220, while the sum is 45.

The square root of 196359921 is about 14012.8484256414. The cubic root of 196359921 is about 581.2339178346.

The spelling of 196359921 in words is "one hundred ninety-six million, three hundred fifty-nine thousand, nine hundred twenty-one".