87581107 has 8 divisors (see below), whose sum is σ = 90552320. Its totient is φ = 84619080.

The previous prime is 87581071. The next prime is 87581111. The reversal of 87581107 is 70118578.

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

It is a cyclic number.

It is not a de Polignac number, because 87581107 - 2¹¹ = 87579059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87581147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20998 + ... + 24820.

It is an arithmetic number, because the mean of its divisors is an integer number (11319040).

Almost surely, 2^87581107 is an apocalyptic number.

87581107 is a deficient number, since it is larger than the sum of its proper divisors (2971213).

87581107 is a wasteful number, since it uses less digits than its factorization.

87581107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4593.

The product of its (nonzero) digits is 15680, while the sum is 37.

The square root of 87581107 is about 9358.4778142602. The cubic root of 87581107 is about 444.0891303763.

The spelling of 87581107 in words is "eighty-seven million, five hundred eighty-one thousand, one hundred seven".