63983385 has 16 divisors (see below), whose sum is σ = 113748480. Its totient is φ = 34124400.

The previous prime is 63983377. The next prime is 63983389. The reversal of 63983385 is 58338936.

63983385 is a `hidden beast` number, since 639 + 8 + 3 + 3 + 8 + 5 = 666.

63983385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63983385 - 2³ = 63983377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63983385.

It is not an unprimeable number, because it can be changed into a prime (63983389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236841 + ... + 237110.

It is an arithmetic number, because the mean of its divisors is an integer number (7109280).

Almost surely, 2^63983385 is an apocalyptic number.

It is an amenable number.

63983385 is a deficient number, since it is larger than the sum of its proper divisors (49765095).

63983385 is a wasteful number, since it uses less digits than its factorization.

63983385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473965 (or 473959 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 63983385 is about 7998.9614950942. The cubic root of 63983385 is about 399.9653824208.

The spelling of 63983385 in words is "sixty-three million, nine hundred eighty-three thousand, three hundred eighty-five".