87581105 has 16 divisors (see below), whose sum is σ = 106997760. Its totient is φ = 68810112.

The previous prime is 87581071. The next prime is 87581111. The reversal of 87581105 is 50118578.

It is a cyclic number.

It is not a de Polignac number, because 87581105 - 2¹⁰ = 87580081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67301 + ... + 68589.

It is an arithmetic number, because the mean of its divisors is an integer number (6687360).

Almost surely, 2^87581105 is an apocalyptic number.

It is an amenable number.

87581105 is a deficient number, since it is larger than the sum of its proper divisors (19416655).

87581105 is a wasteful number, since it uses less digits than its factorization.

87581105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528.

The product of its (nonzero) digits is 11200, while the sum is 35.

The square root of 87581105 is about 9358.4777074052. The cubic root of 87581105 is about 444.0891269959.

The spelling of 87581105 in words is "eighty-seven million, five hundred eighty-one thousand, one hundred five".