87087523 has 2 divisors, whose sum is σ = 87087524. Its totient is φ = 87087522.

The previous prime is 87087491. The next prime is 87087563. The reversal of 87087523 is 32578078.

It is an a-pointer prime, because the next prime (87087563) can be obtained adding 87087523 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87087523 - 2⁵ = 87087491 is a prime.

It is not a weakly prime, because it can be changed into another prime (87087563) 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, 43543761 + 43543762.

It is an arithmetic number, because the mean of its divisors is an integer number (43543762).

Almost surely, 2^87087523 is an apocalyptic number.

87087523 is a deficient number, since it is larger than the sum of its proper divisors (1).

87087523 is an equidigital number, since it uses as much as digits as its factorization.

87087523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 87087523 is about 9332.0695989689. The cubic root of 87087523 is about 443.2533018642.

The spelling of 87087523 in words is "eighty-seven million, eighty-seven thousand, five hundred twenty-three".