87104447 has 4 divisors (see below), whose sum is σ = 92228256. Its totient is φ = 81980640.

The previous prime is 87104441. The next prime is 87104477. The reversal of 87104447 is 74440178.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87104447 - 2⁶ = 87104383 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 (87104441) 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, 2561879 + ... + 2561912.

It is an arithmetic number, because the mean of its divisors is an integer number (23057064).

Almost surely, 2^87104447 is an apocalyptic number.

87104447 is a deficient number, since it is larger than the sum of its proper divisors (5123809).

87104447 is a wasteful number, since it uses less digits than its factorization.

87104447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123808.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 87104447 is about 9332.9763205528. The cubic root of 87104447 is about 443.2820129537.

The spelling of 87104447 in words is "eighty-seven million, one hundred four thousand, four hundred forty-seven".