87475609 has 8 divisors (see below), whose sum is σ = 95340672. Its totient is φ = 79772880.

The previous prime is 87475607. The next prime is 87475613. The reversal of 87475609 is 90657478.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 87475609 - 2¹ = 87475607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87475607) 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, 39457 + ... + 41614.

It is an arithmetic number, because the mean of its divisors is an integer number (11917584).

Almost surely, 2^87475609 is an apocalyptic number.

It is an amenable number.

87475609 is a deficient number, since it is larger than the sum of its proper divisors (7865063).

87475609 is a wasteful number, since it uses less digits than its factorization.

87475609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81167.

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 87475609 is about 9352.8396222752. The cubic root of 87475609 is about 443.9107458634.

The spelling of 87475609 in words is "eighty-seven million, four hundred seventy-five thousand, six hundred nine".