87032409 has 8 divisors (see below), whose sum is σ = 117128160. Its totient is φ = 57479136.

The previous prime is 87032371. The next prime is 87032411. The reversal of 87032409 is 90423078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87032409 - 2¹² = 87028313 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 87032409.

It is not an unprimeable number, because it can be changed into a prime (87032459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135244 + ... + 135885.

It is an arithmetic number, because the mean of its divisors is an integer number (14641020).

Almost surely, 2^87032409 is an apocalyptic number.

It is an amenable number.

87032409 is a deficient number, since it is larger than the sum of its proper divisors (30095751).

87032409 is a wasteful number, since it uses less digits than its factorization.

87032409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271239.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 87032409 is about 9329.1161960820. The cubic root of 87032409 is about 443.1597767265.

The spelling of 87032409 in words is "eighty-seven million, thirty-two thousand, four hundred nine".