383195985 has 16 divisors (see below), whose sum is σ = 639771264. Its totient is φ = 195485312.

The previous prime is 383195959. The next prime is 383195993. The reversal of 383195985 is 589591383.

It is a cyclic number.

It is not a de Polignac number, because 383195985 - 2¹² = 383191889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555012 + ... + 555701.

It is an arithmetic number, because the mean of its divisors is an integer number (39985704).

Almost surely, 2^383195985 is an apocalyptic number.

It is an amenable number.

383195985 is a deficient number, since it is larger than the sum of its proper divisors (256575279).

383195985 is a wasteful number, since it uses less digits than its factorization.

383195985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110744.

The product of its digits is 1166400, while the sum is 51.

The square root of 383195985 is about 19575.3923332331. The cubic root of 383195985 is about 726.3405937054.

The spelling of 383195985 in words is "three hundred eighty-three million, one hundred ninety-five thousand, nine hundred eighty-five".