403013663 has 8 divisors (see below), whose sum is σ = 434177856. Its totient is φ = 371872800.

The previous prime is 403013651. The next prime is 403013669. The reversal of 403013663 is 366310304.

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

It is not a de Polignac number, because 403013663 - 2¹⁸ = 402751519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403013669) 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, 49673 + ... + 57213.

It is an arithmetic number, because the mean of its divisors is an integer number (54272232).

Almost surely, 2^403013663 is an apocalyptic number.

403013663 is a deficient number, since it is larger than the sum of its proper divisors (31164193).

403013663 is a wasteful number, since it uses less digits than its factorization.

403013663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11665.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 403013663 is about 20075.2001982546. The cubic root of 403013663 is about 738.6520769043.

Adding to 403013663 its reverse (366310304), we get a palindrome (769323967).

The spelling of 403013663 in words is "four hundred three million, thirteen thousand, six hundred sixty-three".