63323887 has 4 divisors (see below), whose sum is σ = 69080616. Its totient is φ = 57567160.

The previous prime is 63323867. The next prime is 63323891. The reversal of 63323887 is 78832336.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63323887 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63323867) 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, 2878348 + ... + 2878369.

It is an arithmetic number, because the mean of its divisors is an integer number (17270154).

Almost surely, 2^63323887 is an apocalyptic number.

63323887 is a deficient number, since it is larger than the sum of its proper divisors (5756729).

63323887 is a wasteful number, since it uses less digits than its factorization.

63323887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5756728.

The product of its digits is 145152, while the sum is 40.

The square root of 63323887 is about 7957.6307403649. The cubic root of 63323887 is about 398.5864417672.

The spelling of 63323887 in words is "sixty-three million, three hundred twenty-three thousand, eight hundred eighty-seven".