193991848 has 32 divisors (see below), whose sum is σ = 368933760. Its totient is φ = 95618880.

The previous prime is 193991813. The next prime is 193991849. The reversal of 193991848 is 848199391.

It is a junction number, because it is equal to n+sod(n) for n = 193991795 and 193991804.

It is not an unprimeable number, because it can be changed into a prime (193991849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255886 + ... + 256642.

It is an arithmetic number, because the mean of its divisors is an integer number (11529180).

Almost surely, 2^193991848 is an apocalyptic number.

It is an amenable number.

193991848 is a deficient number, since it is larger than the sum of its proper divisors (174941912).

193991848 is a wasteful number, since it uses less digits than its factorization.

193991848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177 (or 1173 counting only the distinct ones).

The product of its digits is 559872, while the sum is 52.

The square root of 193991848 is about 13928.0956343644. The cubic root of 193991848 is about 578.8879285695.

The spelling of 193991848 in words is "one hundred ninety-three million, nine hundred ninety-one thousand, eight hundred forty-eight".