87936911 has 4 divisors (see below), whose sum is σ = 89596152. Its totient is φ = 86277672.

The previous prime is 87936899. The next prime is 87936913. The reversal of 87936911 is 11963978.

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 87936911 - 2⁶ = 87936847 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 (87936913) 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, 829541 + ... + 829646.

It is an arithmetic number, because the mean of its divisors is an integer number (22399038).

Almost surely, 2^87936911 is an apocalyptic number.

87936911 is a deficient number, since it is larger than the sum of its proper divisors (1659241).

87936911 is a wasteful number, since it uses less digits than its factorization.

87936911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659240.

The product of its digits is 81648, while the sum is 44.

The square root of 87936911 is about 9377.4682617431. The cubic root of 87936911 is about 444.6896982477.

The spelling of 87936911 in words is "eighty-seven million, nine hundred thirty-six thousand, nine hundred eleven".