384331 has 2 divisors, whose sum is σ = 384332. Its totient is φ = 384330.

The previous prime is 384317. The next prime is 384343. The reversal of 384331 is 133483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 384331 - 2⁵ = 384299 is a prime.

It is a super-2 number, since 2×384331² = 295420635122, which contains 22 as substring.

It is a Chen prime.

384331 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (384301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192165 + 192166.

It is an arithmetic number, because the mean of its divisors is an integer number (192166).

2³⁸⁴³³¹ is an apocalyptic number.

384331 is a deficient number, since it is larger than the sum of its proper divisors (1).

384331 is an equidigital number, since it uses as much as digits as its factorization.

384331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 384331 is about 619.9443523414. The cubic root of 384331 is about 72.7057019835.

The spelling of 384331 in words is "three hundred eighty-four thousand, three hundred thirty-one".