87358865 has 16 divisors (see below), whose sum is σ = 120381120. Its totient is φ = 60189120.

The previous prime is 87358819. The next prime is 87358867. The reversal of 87358865 is 56885378.

It is not a de Polignac number, because 87358865 - 2¹² = 87354769 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87358867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40754 + ... + 42843.

It is an arithmetic number, because the mean of its divisors is an integer number (7523820).

Almost surely, 2^87358865 is an apocalyptic number.

It is an amenable number.

87358865 is a deficient number, since it is larger than the sum of its proper divisors (33022255).

87358865 is a wasteful number, since it uses less digits than its factorization.

87358865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83632.

The product of its digits is 1612800, while the sum is 50.

The square root of 87358865 is about 9346.5964393463. The cubic root of 87358865 is about 443.7131784563.

The spelling of 87358865 in words is "eighty-seven million, three hundred fifty-eight thousand, eight hundred sixty-five".