87104871 has 24 divisors (see below), whose sum is σ = 144413984. Its totient is φ = 49559040.

The previous prime is 87104867. The next prime is 87104879. The reversal of 87104871 is 17840178.

It is not a de Polignac number, because 87104871 - 2² = 87104867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87104879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12315 + ... + 18051.

Almost surely, 2^87104871 is an apocalyptic number.

87104871 is a deficient number, since it is larger than the sum of its proper divisors (57309113).

87104871 is a wasteful number, since it uses less digits than its factorization.

87104871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5991 (or 5988 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 87104871 is about 9332.9990356798. Note that the first 3 decimals coincide. The cubic root of 87104871 is about 443.2827322100.

The spelling of 87104871 in words is "eighty-seven million, one hundred four thousand, eight hundred seventy-one".