87023668 has 12 divisors (see below), whose sum is σ = 155165220. Its totient is φ = 42690752.

The previous prime is 87023659. The next prime is 87023669. The reversal of 87023668 is 86632078.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 53406864 + 33616804 = 7308^2 + 5798^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 87023668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87023669) 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, 205033 + ... + 205456.

It is an arithmetic number, because the mean of its divisors is an integer number (12930435).

Almost surely, 2^87023668 is an apocalyptic number.

It is an amenable number.

87023668 is a deficient number, since it is larger than the sum of its proper divisors (68141552).

87023668 is a wasteful number, since it uses less digits than its factorization.

87023668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410546 (or 410544 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 87023668 is about 9328.6477047855. The cubic root of 87023668 is about 443.1449401488.

The spelling of 87023668 in words is "eighty-seven million, twenty-three thousand, six hundred sixty-eight".