383984375 has 18 divisors (see below), whose sum is σ = 480468504. Its totient is φ = 306875000.

The previous prime is 383984371. The next prime is 383984387. The reversal of 383984375 is 573489383.

It is a happy number.

It is not a de Polignac number, because 383984375 - 2² = 383984371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383984371) 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 17 ways as a sum of consecutive naturals, for example, 390134 + ... + 391116.

Almost surely, 2^383984375 is an apocalyptic number.

383984375 is a deficient number, since it is larger than the sum of its proper divisors (96484129).

383984375 is an frugal number, since it uses more digits than its factorization.

383984375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 988 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The square root of 383984375 is about 19595.5192582386. The cubic root of 383984375 is about 726.8383784890.

The spelling of 383984375 in words is "three hundred eighty-three million, nine hundred eighty-four thousand, three hundred seventy-five".