87104289 has 16 divisors (see below), whose sum is σ = 121905792. Its totient is φ = 55216128.

The previous prime is 87104273. The next prime is 87104293. The reversal of 87104289 is 98240178.

It is not a de Polignac number, because 87104289 - 2⁴ = 87104273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87104249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8289 + ... + 15585.

It is an arithmetic number, because the mean of its divisors is an integer number (7619112).

Almost surely, 2^87104289 is an apocalyptic number.

It is an amenable number.

87104289 is a deficient number, since it is larger than the sum of its proper divisors (34801503).

87104289 is a wasteful number, since it uses less digits than its factorization.

87104289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7496.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 87104289 is about 9332.9678559395. The cubic root of 87104289 is about 443.2817449284.

The spelling of 87104289 in words is "eighty-seven million, one hundred four thousand, two hundred eighty-nine".