385903 has 8 divisors (see below), whose sum is σ = 456480. Its totient is φ = 319200.

The previous prime is 385901. The next prime is 385907. The reversal of 385903 is 309583.

It is a happy number.

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

It is not a de Polignac number, because 385903 - 2¹ = 385901 is a prime.

It is a super-2 number, since 2×385903² = 297842250818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748 + ... + 1153.

It is an arithmetic number, because the mean of its divisors is an integer number (57060).

2³⁸⁵⁹⁰³ is an apocalyptic number.

385903 is a deficient number, since it is larger than the sum of its proper divisors (70577).

385903 is a wasteful number, since it uses less digits than its factorization.

385903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 385903 is about 621.2109142634. The cubic root of 385903 is about 72.8046946817.

The spelling of 385903 in words is "three hundred eighty-five thousand, nine hundred three".