63887311 has 4 divisors (see below), whose sum is σ = 65948224. Its totient is φ = 61826400.

The previous prime is 63887287. The next prime is 63887321. The reversal of 63887311 is 11378836.

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

It is not a de Polignac number, because 63887311 - 2⁷ = 63887183 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 (63887321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030410 + ... + 1030471.

It is an arithmetic number, because the mean of its divisors is an integer number (16487056).

Almost surely, 2^63887311 is an apocalyptic number.

63887311 is a deficient number, since it is larger than the sum of its proper divisors (2060913).

63887311 is a wasteful number, since it uses less digits than its factorization.

63887311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060912.

The product of its digits is 24192, while the sum is 37.

The square root of 63887311 is about 7992.9538344720. The cubic root of 63887311 is about 399.7650933241.

The spelling of 63887311 in words is "sixty-three million, eight hundred eighty-seven thousand, three hundred eleven".