87036589 has 2 divisors, whose sum is σ = 87036590. Its totient is φ = 87036588.

The previous prime is 87036581. The next prime is 87036613. The reversal of 87036589 is 98563078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74960964 + 12075625 = 8658^2 + 3475^2 .

It is a cyclic number.

It is not a de Polignac number, because 87036589 - 2³ = 87036581 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87036581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43518294 + 43518295.

It is an arithmetic number, because the mean of its divisors is an integer number (43518295).

Almost surely, 2^87036589 is an apocalyptic number.

It is an amenable number.

87036589 is a deficient number, since it is larger than the sum of its proper divisors (1).

87036589 is an equidigital number, since it uses as much as digits as its factorization.

87036589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 87036589 is about 9329.3402231883. The cubic root of 87036589 is about 443.1668713182.

The spelling of 87036589 in words is "eighty-seven million, thirty-six thousand, five hundred eighty-nine".