9087861 has 4 divisors (see below), whose sum is σ = 12117152. Its totient is φ = 6058572.

The previous prime is 9087853. The next prime is 9087893. The reversal of 9087861 is 1687809.

9087861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9087861 - 2³ = 9087853 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 (9087811) 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 3 ways as a sum of consecutive naturals, for example, 1514641 + ... + 1514646.

It is an arithmetic number, because the mean of its divisors is an integer number (3029288).

Almost surely, 2^9087861 is an apocalyptic number.

It is an amenable number.

9087861 is a deficient number, since it is larger than the sum of its proper divisors (3029291).

9087861 is a wasteful number, since it uses less digits than its factorization.

9087861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029290.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 9087861 is about 3014.6079347073. The cubic root of 9087861 is about 208.6830739117.

The spelling of 9087861 in words is "nine million, eighty-seven thousand, eight hundred sixty-one".