382875391 has 4 divisors (see below), whose sum is σ = 383125072. Its totient is φ = 382625712.

The previous prime is 382875379. The next prime is 382875401. The reversal of 382875391 is 193578283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 193578283 = 1409 ⋅137387.

It is a cyclic number.

It is not a de Polignac number, because 382875391 - 2⁷ = 382875263 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 (382875341) 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, 122526 + ... + 125611.

It is an arithmetic number, because the mean of its divisors is an integer number (95781268).

Almost surely, 2^382875391 is an apocalyptic number.

382875391 is a deficient number, since it is larger than the sum of its proper divisors (249681).

382875391 is a wasteful number, since it uses less digits than its factorization.

382875391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249680.

The product of its digits is 362880, while the sum is 46.

The square root of 382875391 is about 19567.2019205608. The cubic root of 382875391 is about 726.1379772766.

The spelling of 382875391 in words is "three hundred eighty-two million, eight hundred seventy-five thousand, three hundred ninety-one".