87605017 has 4 divisors (see below), whose sum is σ = 87624720. Its totient is φ = 87585316.

The previous prime is 87605009. The next prime is 87605033. The reversal of 87605017 is 71050678.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71050678 = 2 ⋅35525339.

It is a cyclic number.

It is not a de Polignac number, because 87605017 - 2³ = 87605009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87605087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318 + ... + 13240.

It is an arithmetic number, because the mean of its divisors is an integer number (21906180).

Almost surely, 2^87605017 is an apocalyptic number.

It is an amenable number.

87605017 is a deficient number, since it is larger than the sum of its proper divisors (19703).

87605017 is a wasteful number, since it uses less digits than its factorization.

87605017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19702.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 87605017 is about 9359.7551784221. The cubic root of 87605017 is about 444.1295394148.

The spelling of 87605017 in words is "eighty-seven million, six hundred five thousand, seventeen".