194983783 has 4 divisors (see below), whose sum is σ = 195212160. Its totient is φ = 194755408.

The previous prime is 194983739. The next prime is 194983793. The reversal of 194983783 is 387389491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 387389491 = 331 ⋅1170361.

It is a cyclic number.

It is not a de Polignac number, because 194983783 - 2²⁵ = 161429351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 194983783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194983703) 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, 112903 + ... + 114616.

It is an arithmetic number, because the mean of its divisors is an integer number (48803040).

Almost surely, 2^194983783 is an apocalyptic number.

194983783 is a deficient number, since it is larger than the sum of its proper divisors (228377).

194983783 is an equidigital number, since it uses as much as digits as its factorization.

194983783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228376.

The product of its digits is 1306368, while the sum is 52.

The square root of 194983783 is about 13963.6593699503. The cubic root of 194983783 is about 579.8729240032.

The spelling of 194983783 in words is "one hundred ninety-four million, nine hundred eighty-three thousand, seven hundred eighty-three".