87466509 has 24 divisors (see below), whose sum is σ = 137795840. Its totient is φ = 53138592.

The previous prime is 87466501. The next prime is 87466517. The reversal of 87466509 is 90566478.

87466509 is a `hidden beast` number, since 87 + 4 + 66 + 509 = 666.

It is an interprime number because it is at equal distance from previous prime (87466501) and next prime (87466517).

It is not a de Polignac number, because 87466509 - 2³ = 87466501 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87466501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4512 + ... + 13974.

Almost surely, 2^87466509 is an apocalyptic number.

It is an amenable number.

87466509 is a deficient number, since it is larger than the sum of its proper divisors (50329331).

87466509 is a wasteful number, since it uses less digits than its factorization.

87466509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9561 (or 9558 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 87466509 is about 9352.3531263527. The cubic root of 87466509 is about 443.8953521328.

The spelling of 87466509 in words is "eighty-seven million, four hundred sixty-six thousand, five hundred nine".