87508073 has 2 divisors, whose sum is σ = 87508074. Its totient is φ = 87508072.

The previous prime is 87508067. The next prime is 87508081. The reversal of 87508073 is 37080578.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84860944 + 2647129 = 9212^2 + 1627^2 .

It is a cyclic number.

It is not a de Polignac number, because 87508073 - 2²⁰ = 86459497 is a prime.

It is not a weakly prime, because it can be changed into another prime (87502073) 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 as a sum of consecutive naturals, namely, 43754036 + 43754037.

It is an arithmetic number, because the mean of its divisors is an integer number (43754037).

Almost surely, 2^87508073 is an apocalyptic number.

It is an amenable number.

87508073 is a deficient number, since it is larger than the sum of its proper divisors (1).

87508073 is an equidigital number, since it uses as much as digits as its factorization.

87508073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 87508073 is about 9354.5749769832. The cubic root of 87508073 is about 443.9656538781.

The spelling of 87508073 in words is "eighty-seven million, five hundred eight thousand, seventy-three".