63403 has 8 divisors (see below), whose sum is σ = 69120. Its totient is φ = 57960.

The previous prime is 63397. The next prime is 63409. The reversal of 63403 is 30436.

It is a happy number.

63403 is nontrivially palindromic in base 13.

It is an interprime number because it is at equal distance from previous prime (63397) and next prime (63409).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63403 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (63409) 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, 858 + ... + 928.

It is an arithmetic number, because the mean of its divisors is an integer number (8640).

2⁶³⁴⁰³ is an apocalyptic number.

63403 is a deficient number, since it is larger than the sum of its proper divisors (5717).

63403 is a wasteful number, since it uses less digits than its factorization.

63403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137.

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

The square root of 63403 is about 251.7995234308. The cubic root of 63403 is about 39.8752362548.

Adding to 63403 its reverse (30436), we get a palindrome (93839).

The spelling of 63403 in words is "sixty-three thousand, four hundred three".