363403 has 2 divisors, whose sum is σ = 363404. Its totient is φ = 363402.

The previous prime is 363401. The next prime is 363431. The reversal of 363403 is 304363.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (304363) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 363403 - 2¹ = 363401 is a prime.

Together with 363401, it forms a pair of twin primes.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (363401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181701 + 181702.

It is an arithmetic number, because the mean of its divisors is an integer number (181702).

2³⁶³⁴⁰³ is an apocalyptic number.

363403 is a deficient number, since it is larger than the sum of its proper divisors (1).

363403 is an equidigital number, since it uses as much as digits as its factorization.

363403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 363403 is about 602.8291631963. The cubic root of 363403 is about 71.3613136417.

Adding to 363403 its reverse (304363), we get a palindrome (667766).

The spelling of 363403 in words is "three hundred sixty-three thousand, four hundred three".