87017109 has 4 divisors (see below), whose sum is σ = 116022816. Its totient is φ = 58011404.

The previous prime is 87017071. The next prime is 87017137. The reversal of 87017109 is 90171078.

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.

It is a cyclic number.

It is not a de Polignac number, because 87017109 - 2²⁵ = 53462677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87017109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87017159) 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, 14502849 + ... + 14502854.

It is an arithmetic number, because the mean of its divisors is an integer number (29005704).

Almost surely, 2^87017109 is an apocalyptic number.

It is an amenable number.

87017109 is a deficient number, since it is larger than the sum of its proper divisors (29005707).

87017109 is a wasteful number, since it uses less digits than its factorization.

87017109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29005706.

The product of its (nonzero) digits is 3528, while the sum is 33.

The square root of 87017109 is about 9328.2961466712. The cubic root of 87017109 is about 443.1338065467.

The spelling of 87017109 in words is "eighty-seven million, seventeen thousand, one hundred nine".