193983929 has 4 divisors (see below), whose sum is σ = 200673060. Its totient is φ = 187294800.

The previous prime is 193983887. The next prime is 193983967. The reversal of 193983929 is 929389391.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 929389391 = 7 ⋅132769913.

It can be written as a sum of positive squares in 2 ways, for example, as 40347904 + 153636025 = 6352^2 + 12395^2 .

It is a cyclic number.

It is not a de Polignac number, because 193983929 - 2¹² = 193979833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193983989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3344522 + ... + 3344579.

It is an arithmetic number, because the mean of its divisors is an integer number (50168265).

Almost surely, 2^193983929 is an apocalyptic number.

It is an amenable number.

193983929 is a deficient number, since it is larger than the sum of its proper divisors (6689131).

193983929 is an equidigital number, since it uses as much as digits as its factorization.

193983929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6689130.

The product of its digits is 944784, while the sum is 53.

The square root of 193983929 is about 13927.8113499573. The cubic root of 193983929 is about 578.8800514758.

The spelling of 193983929 in words is "one hundred ninety-three million, nine hundred eighty-three thousand, nine hundred twenty-nine".