87087065 has 16 divisors (see below), whose sum is σ = 112739088. Its totient is φ = 64198656.

The previous prime is 87087043. The next prime is 87087079. The reversal of 87087065 is 56078078.

It can be written as a sum of positive squares in 8 ways, for example, as 13075456 + 74011609 = 3616^2 + 8603^2 .

It is a cyclic number.

It is not a de Polignac number, because 87087065 - 2⁶ = 87087001 is a prime.

It is a Duffinian number.

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, 66497 + ... + 67793.

It is an arithmetic number, because the mean of its divisors is an integer number (7046193).

Almost surely, 2^87087065 is an apocalyptic number.

It is an amenable number.

87087065 is a deficient number, since it is larger than the sum of its proper divisors (25652023).

87087065 is a wasteful number, since it uses less digits than its factorization.

87087065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 87087065 is about 9332.0450598998. The cubic root of 87087065 is about 443.2525248285.

The spelling of 87087065 in words is "eighty-seven million, eighty-seven thousand, sixty-five".