663474603 has 16 divisors (see below), whose sum is σ = 974428416. Its totient is φ = 398199840.

The previous prime is 663474577. The next prime is 663474611. The reversal of 663474603 is 306474366.

It is not a de Polignac number, because 663474603 - 2¹⁰ = 663473579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (663474683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94200 + ... + 100997.

It is an arithmetic number, because the mean of its divisors is an integer number (60901776).

Almost surely, 2^663474603 is an apocalyptic number.

663474603 is a deficient number, since it is larger than the sum of its proper divisors (310953813).

663474603 is a wasteful number, since it uses less digits than its factorization.

663474603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195314.

The product of its (nonzero) digits is 217728, while the sum is 39.

The square root of 663474603 is about 25758.0007570463. Note that the first 3 decimals coincide. The cubic root of 663474603 is about 872.1839712804.

Subtracting from 663474603 its sum of digits (39), we obtain a square (663474564 = 25758²).

The spelling of 663474603 in words is "six hundred sixty-three million, four hundred seventy-four thousand, six hundred three".