383403 has 8 divisors (see below), whose sum is σ = 514368. Its totient is φ = 254024.

The previous prime is 383399. The next prime is 383417. The reversal of 383403 is 304383.

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

It is a cyclic number.

It is not a de Polignac number, because 383403 - 2² = 383399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 383403.

It is not an unprimeable number, because it can be changed into a prime (383483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400 + ... + 962.

It is an arithmetic number, because the mean of its divisors is an integer number (64296).

2³⁸³⁴⁰³ is an apocalyptic number.

383403 is a deficient number, since it is larger than the sum of its proper divisors (130965).

383403 is a wasteful number, since it uses less digits than its factorization.

383403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 383403 is about 619.1954457197. The cubic root of 383403 is about 72.6471367804.

Adding to 383403 its reverse (304383), we get a palindrome (687786).

The spelling of 383403 in words is "three hundred eighty-three thousand, four hundred three".