383972685 has 8 divisors (see below), whose sum is σ = 614356320. Its totient is φ = 204785424.

The previous prime is 383972683. The next prime is 383972707. The reversal of 383972685 is 586279383.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 383972685 - 2¹ = 383972683 is a prime.

It is a super-2 number, since 2×383972685² = 294870045652218450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383972683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12799075 + ... + 12799104.

It is an arithmetic number, because the mean of its divisors is an integer number (76794540).

Almost surely, 2^383972685 is an apocalyptic number.

It is an amenable number.

383972685 is a deficient number, since it is larger than the sum of its proper divisors (230383635).

383972685 is a wasteful number, since it uses less digits than its factorization.

383972685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25598187.

The product of its digits is 2177280, while the sum is 51.

The square root of 383972685 is about 19595.2209734925. The cubic root of 383972685 is about 726.8310024711.

The spelling of 383972685 in words is "three hundred eighty-three million, nine hundred seventy-two thousand, six hundred eighty-five".