189603938 has 8 divisors (see below), whose sum is σ = 288411840. Its totient is φ = 93466660.

The previous prime is 189603937. The next prime is 189603959. The reversal of 189603938 is 839306981.

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 = 189603892 and 189603901.

It is not an unprimeable number, because it can be changed into a prime (189603937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667478 + ... + 667761.

It is an arithmetic number, because the mean of its divisors is an integer number (36051480).

Almost surely, 2^189603938 is an apocalyptic number.

189603938 is a deficient number, since it is larger than the sum of its proper divisors (98807902).

189603938 is a wasteful number, since it uses less digits than its factorization.

189603938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335312.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 189603938 is about 13769.6745785803. The cubic root of 189603938 is about 574.4899704178.

The spelling of 189603938 in words is "one hundred eighty-nine million, six hundred three thousand, nine hundred thirty-eight".