63533983 has 8 divisors (see below), whose sum is σ = 65814480. Its totient is φ = 61259520.

The previous prime is 63533963. The next prime is 63533993. The reversal of 63533983 is 38933536.

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-63533983 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 (63533923) 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 7 ways as a sum of consecutive naturals, for example, 36591 + ... + 38287.

It is an arithmetic number, because the mean of its divisors is an integer number (8226810).

Almost surely, 2^63533983 is an apocalyptic number.

63533983 is a deficient number, since it is larger than the sum of its proper divisors (2280497).

63533983 is a wasteful number, since it uses less digits than its factorization.

63533983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017.

The product of its digits is 174960, while the sum is 40.

The square root of 63533983 is about 7970.8207231125. The cubic root of 63533983 is about 399.0267652056.

It can be divided in two parts, 63533 and 983, that added together give a square (64516 = 254²).

The spelling of 63533983 in words is "sixty-three million, five hundred thirty-three thousand, nine hundred eighty-three".