194931793 has 8 divisors (see below), whose sum is σ = 224383040. Its totient is φ = 165881520.

The previous prime is 194931787. The next prime is 194931817. The reversal of 194931793 is 397139491.

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

It is a de Polignac number, because none of the positive numbers 2^k-194931793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (194931703) 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, 99198 + ... + 101143.

It is an arithmetic number, because the mean of its divisors is an integer number (28047880).

Almost surely, 2^194931793 is an apocalyptic number.

It is an amenable number.

194931793 is a deficient number, since it is larger than the sum of its proper divisors (29451247).

194931793 is a wasteful number, since it uses less digits than its factorization.

194931793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200487.

The product of its digits is 183708, while the sum is 46.

The square root of 194931793 is about 13961.7976278128. The cubic root of 194931793 is about 579.8213807881.

The spelling of 194931793 in words is "one hundred ninety-four million, nine hundred thirty-one thousand, seven hundred ninety-three".