63984127 has 4 divisors (see below), whose sum is σ = 64021456. Its totient is φ = 63946800.

The previous prime is 63984101. The next prime is 63984131. The reversal of 63984127 is 72148936.

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 63984127 - 2¹⁹ = 63459839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63984127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63984157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15963 + ... + 19564.

It is an arithmetic number, because the mean of its divisors is an integer number (16005364).

Almost surely, 2^63984127 is an apocalyptic number.

63984127 is a deficient number, since it is larger than the sum of its proper divisors (37329).

63984127 is a wasteful number, since it uses less digits than its factorization.

63984127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37328.

The product of its digits is 72576, while the sum is 40.

The square root of 63984127 is about 7999.0078759806. The cubic root of 63984127 is about 399.9669285158.

The spelling of 63984127 in words is "sixty-three million, nine hundred eighty-four thousand, one hundred twenty-seven".