199923383 has 48 divisors (see below), whose sum is σ = 252274176. Its totient is φ = 156414720.

The previous prime is 199923379. The next prime is 199923389. The reversal of 199923383 is 383329991.

It is not a de Polignac number, because 199923383 - 2² = 199923379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199923389) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4253666 + ... + 4253712.

It is an arithmetic number, because the mean of its divisors is an integer number (5255712).

Almost surely, 2^199923383 is an apocalyptic number.

199923383 is a deficient number, since it is larger than the sum of its proper divisors (52350793).

199923383 is a wasteful number, since it uses less digits than its factorization.

199923383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 141 counting only the distinct ones).

The product of its digits is 314928, while the sum is 47.

The square root of 199923383 is about 14139.4265442415. The cubic root of 199923383 is about 584.7288616157.

The spelling of 199923383 in words is "one hundred ninety-nine million, nine hundred twenty-three thousand, three hundred eighty-three".