36403 has 4 divisors (see below), whose sum is σ = 37080. Its totient is φ = 35728.

The previous prime is 36389. The next prime is 36433. The reversal of 36403 is 30463.

It is a happy number.

36403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30463 = 41 ⋅743.

It is a cyclic number.

It is not a de Polignac number, because 36403 - 2¹³ = 28211 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 36403.

It is not an unprimeable number, because it can be changed into a prime (36433) 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, 250 + ... + 367.

It is an arithmetic number, because the mean of its divisors is an integer number (9270).

2³⁶⁴⁰³ is an apocalyptic number.

36403 is a deficient number, since it is larger than the sum of its proper divisors (677).

36403 is an equidigital number, since it uses as much as digits as its factorization.

36403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 36403 is about 190.7957022577. The cubic root of 36403 is about 33.1420263721.

Adding to 36403 its reverse (30463), we get a palindrome (66866).

The spelling of 36403 in words is "thirty-six thousand, four hundred three".