87688011 has 8 divisors (see below), whose sum is σ = 117759040. Its totient is φ = 58037832.

The previous prime is 87688009. The next prime is 87688019. The reversal of 87688011 is 11088678.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87688011 - 2¹ = 87688009 is a prime.

It is a super-2 number, since 2×87688011² = 15378374546272242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87688019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104725 + ... + 105558.

It is an arithmetic number, because the mean of its divisors is an integer number (14719880).

Almost surely, 2^87688011 is an apocalyptic number.

87688011 is a deficient number, since it is larger than the sum of its proper divisors (30071029).

87688011 is a wasteful number, since it uses less digits than its factorization.

87688011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210425.

The product of its (nonzero) digits is 21504, while the sum is 39.

The square root of 87688011 is about 9364.1876850050. The cubic root of 87688011 is about 444.2697461990.

The spelling of 87688011 in words is "eighty-seven million, six hundred eighty-eight thousand, eleven".