63984003 has 4 divisors (see below), whose sum is σ = 85312008. Its totient is φ = 42656000.

The previous prime is 63983951. The next prime is 63984007. The reversal of 63984003 is 30048936.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63984003 - 2⁸ = 63983747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63984007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10663998 + ... + 10664003.

It is an arithmetic number, because the mean of its divisors is an integer number (21328002).

Almost surely, 2^63984003 is an apocalyptic number.

63984003 is a deficient number, since it is larger than the sum of its proper divisors (21328005).

63984003 is a wasteful number, since it uses less digits than its factorization.

63984003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21328004.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 63984003 is about 7999.0001250156. Note that the first 3 decimals coincide. The cubic root of 63984003 is about 399.9666701395.

It can be divided in two parts, 6398 and 4003, that added together give a palindrome (10401).

The spelling of 63984003 in words is "sixty-three million, nine hundred eighty-four thousand, three".