87964888927 has 4 divisors (see below), whose sum is σ = 93139294176. Its totient is φ = 82790483680.

The previous prime is 87964888903. The next prime is 87964888931. The reversal of 87964888927 is 72988846978.

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 87964888927 - 2¹⁵ = 87964856159 is a prime.

It is a super-2 number, since 2×87964888927² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87964888727) 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, 2587202599 + ... + 2587202632.

It is an arithmetic number, because the mean of its divisors is an integer number (23284823544).

Almost surely, 2^87964888927 is an apocalyptic number.

87964888927 is a deficient number, since it is larger than the sum of its proper divisors (5174405249).

87964888927 is a wasteful number, since it uses less digits than its factorization.

87964888927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5174405248.

The product of its digits is 780337152, while the sum is 76.

The spelling of 87964888927 in words is "eighty-seven billion, nine hundred sixty-four million, eight hundred eighty-eight thousand, nine hundred twenty-seven".