194083857 has 28 divisors (see below), whose sum is σ = 317459664. Its totient is φ = 117621720.

The previous prime is 194083847. The next prime is 194083861. The reversal of 194083857 is 758380491.

It is not a de Polignac number, because 194083857 - 2⁸ = 194083601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (194083817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4083 + ... + 20120.

Almost surely, 2^194083857 is an apocalyptic number.

It is an amenable number.

194083857 is a deficient number, since it is larger than the sum of its proper divisors (123375807).

194083857 is an equidigital number, since it uses as much as digits as its factorization.

194083857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24232 (or 24217 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 194083857 is about 13931.3982428183. The cubic root of 194083857 is about 578.9794349591.

The spelling of 194083857 in words is "one hundred ninety-four million, eighty-three thousand, eight hundred fifty-seven".