87606511 has 4 divisors (see below), whose sum is σ = 92217400. Its totient is φ = 82995624.

The previous prime is 87606503. The next prime is 87606529. The reversal of 87606511 is 11560678.

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 87606511 - 2³ = 87606503 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 (87606551) 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, 2305416 + ... + 2305453.

It is an arithmetic number, because the mean of its divisors is an integer number (23054350).

Almost surely, 2^87606511 is an apocalyptic number.

87606511 is a deficient number, since it is larger than the sum of its proper divisors (4610889).

87606511 is a wasteful number, since it uses less digits than its factorization.

87606511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4610888.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 87606511 is about 9359.8349878617. The cubic root of 87606511 is about 444.1320641019.

The spelling of 87606511 in words is "eighty-seven million, six hundred six thousand, five hundred eleven".