385387 has 4 divisors (see below), whose sum is σ = 387720. Its totient is φ = 383056.

The previous prime is 385379. The next prime is 385391. The reversal of 385387 is 783583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783583 = 487 ⋅1609.

It is a cyclic number.

It is not a de Polignac number, because 385387 - 2³ = 385379 is a prime.

It is a Duffinian number.

385387 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (385327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898 + ... + 1255.

It is an arithmetic number, because the mean of its divisors is an integer number (96930).

2³⁸⁵³⁸⁷ is an apocalyptic number.

385387 is a deficient number, since it is larger than the sum of its proper divisors (2333).

385387 is a wasteful number, since it uses less digits than its factorization.

385387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332.

The product of its digits is 20160, while the sum is 34.

The square root of 385387 is about 620.7954574576. The cubic root of 385387 is about 72.7722305833.

The spelling of 385387 in words is "three hundred eighty-five thousand, three hundred eighty-seven".