193689868 has 12 divisors (see below), whose sum is σ = 341233200. Its totient is φ = 96194672.

The previous prime is 193689851. The next prime is 193689883. The reversal of 193689868 is 868986391.

193689868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161896 + ... + 163087.

It is an arithmetic number, because the mean of its divisors is an integer number (28436100).

Almost surely, 2^193689868 is an apocalyptic number.

It is an amenable number.

193689868 is a deficient number, since it is larger than the sum of its proper divisors (147543332).

193689868 is a wasteful number, since it uses less digits than its factorization.

193689868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325136 (or 325134 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 58.

The square root of 193689868 is about 13917.2507342506. The cubic root of 193689868 is about 578.5873946981.

The spelling of 193689868 in words is "one hundred ninety-three million, six hundred eighty-nine thousand, eight hundred sixty-eight".