196905838 has 8 divisors (see below), whose sum is σ = 297613800. Its totient is φ = 97701240.

The previous prime is 196905827. The next prime is 196905847. The reversal of 196905838 is 838509691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 196905791 and 196905800.

It is a congruent number.

It is an unprimeable number.

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, 375513 + ... + 376036.

It is an arithmetic number, because the mean of its divisors is an integer number (37201725).

Almost surely, 2^196905838 is an apocalyptic number.

196905838 is a deficient number, since it is larger than the sum of its proper divisors (100707962).

196905838 is a wasteful number, since it uses less digits than its factorization.

196905838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751682.

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 196905838 is about 14032.3140643302. The cubic root of 196905838 is about 581.7720654573.

The spelling of 196905838 in words is "one hundred ninety-six million, nine hundred five thousand, eight hundred thirty-eight".