87163587 has 16 divisors (see below), whose sum is σ = 147578880. Its totient is φ = 49807656.

The previous prime is 87163577. The next prime is 87163597. The reversal of 87163587 is 78536178.

87163587 is a `hidden beast` number, since 8 + 7 + 1 + 63 + 587 = 666.

It is an interprime number because it is at equal distance from previous prime (87163577) and next prime (87163597).

It is not a de Polignac number, because 87163587 - 2⁷ = 87163459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87163577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230403 + ... + 230780.

It is an arithmetic number, because the mean of its divisors is an integer number (9223680).

Almost surely, 2^87163587 is an apocalyptic number.

87163587 is a deficient number, since it is larger than the sum of its proper divisors (60415293).

87163587 is a wasteful number, since it uses less digits than its factorization.

87163587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461199 (or 461193 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 87163587 is about 9336.1441184249. The cubic root of 87163587 is about 443.3823131041.

The spelling of 87163587 in words is "eighty-seven million, one hundred sixty-three thousand, five hundred eighty-seven".