380903 has 4 divisors (see below), whose sum is σ = 397488. Its totient is φ = 364320.

The previous prime is 380881. The next prime is 380909. The reversal of 380903 is 309083.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 380903 - 2⁶ = 380839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 16561 = 380903 / (3 + 8 + 0 + 9 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8258 + ... + 8303.

It is an arithmetic number, because the mean of its divisors is an integer number (99372).

2³⁸⁰⁹⁰³ is an apocalyptic number.

380903 is a deficient number, since it is larger than the sum of its proper divisors (16585).

380903 is a wasteful number, since it uses less digits than its factorization.

380903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16584.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 380903 is about 617.1733954085. The cubic root of 380903 is about 72.4888924719.

380903 divided by its sum of digits (23) gives a palindrome (16561).

Adding to 380903 its reverse (309083), we get a palindrome (689986).

The spelling of 380903 in words is "three hundred eighty thousand, nine hundred three".