87563827 has 4 divisors (see below), whose sum is σ = 94299520. Its totient is φ = 80828136.

The previous prime is 87563797. The next prime is 87563863. The reversal of 87563827 is 72836578.

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-87563827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87563887) 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 3 ways as a sum of consecutive naturals, for example, 3367827 + ... + 3367852.

It is an arithmetic number, because the mean of its divisors is an integer number (23574880).

Almost surely, 2^87563827 is an apocalyptic number.

87563827 is a deficient number, since it is larger than the sum of its proper divisors (6735693).

87563827 is a wasteful number, since it uses less digits than its factorization.

87563827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6735692.

The product of its digits is 564480, while the sum is 46.

The square root of 87563827 is about 9357.5545416524. The cubic root of 87563827 is about 444.0599217750.

The spelling of 87563827 in words is "eighty-seven million, five hundred sixty-three thousand, eight hundred twenty-seven".