87611169 has 8 divisors (see below), whose sum is σ = 118415392. Its totient is φ = 57607200.

The previous prime is 87611159. The next prime is 87611213. The reversal of 87611169 is 96111678.

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

It is not a de Polignac number, because 87611169 - 2¹² = 87607073 is a prime.

It is a super-2 number, since 2×87611169² = 15351433867093122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87611119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199807 + ... + 200244.

It is an arithmetic number, because the mean of its divisors is an integer number (14801924).

Almost surely, 2^87611169 is an apocalyptic number.

It is an amenable number.

87611169 is a deficient number, since it is larger than the sum of its proper divisors (30804223).

87611169 is a wasteful number, since it uses less digits than its factorization.

87611169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400127.

The product of its digits is 18144, while the sum is 39.

The square root of 87611169 is about 9360.0838137273. The cubic root of 87611169 is about 444.1399353985.

The spelling of 87611169 in words is "eighty-seven million, six hundred eleven thousand, one hundred sixty-nine".