403313 has 4 divisors (see below), whose sum is σ = 424560. Its totient is φ = 382068.

The previous prime is 403309. The next prime is 403327. The reversal of 403313 is 313304.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 403313 - 2² = 403309 is a prime.

It is a super-2 number, since 2×403313² = 325322751938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403363) 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, 10595 + ... + 10632.

It is an arithmetic number, because the mean of its divisors is an integer number (106140).

2⁴⁰³³¹³ is an apocalyptic number.

It is an amenable number.

403313 is a deficient number, since it is larger than the sum of its proper divisors (21247).

403313 is a wasteful number, since it uses less digits than its factorization.

403313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21246.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 403313 is about 635.0692875585. The cubic root of 403313 is about 73.8834908735.

Adding to 403313 its reverse (313304), we get a palindrome (716617).

Subtracting from 403313 its reverse (313304), we obtain a palindrome (90009).

The spelling of 403313 in words is "four hundred three thousand, three hundred thirteen".