87988575 has 12 divisors (see below), whose sum is σ = 145474568. Its totient is φ = 46927200.

The previous prime is 87988573. The next prime is 87988577. The reversal of 87988575 is 57588978.

It is an interprime number because it is at equal distance from previous prime (87988573) and next prime (87988577).

It is not a de Polignac number, because 87988575 - 2¹ = 87988573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87988573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 586516 + ... + 586665.

Almost surely, 2^87988575 is an apocalyptic number.

87988575 is a deficient number, since it is larger than the sum of its proper divisors (57485993).

87988575 is a wasteful number, since it uses less digits than its factorization.

87988575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173194 (or 1173189 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 57.

The square root of 87988575 is about 9380.2225453344. Note that the first 3 decimals coincide. The cubic root of 87988575 is about 444.7767680591.

The spelling of 87988575 in words is "eighty-seven million, nine hundred eighty-eight thousand, five hundred seventy-five".