87271699 has 4 divisors (see below), whose sum is σ = 87350536. Its totient is φ = 87192864.

The previous prime is 87271697. The next prime is 87271703. The reversal of 87271699 is 99617278.

It is a happy number.

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 87271699 - 2¹ = 87271697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87271697) 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 3 ways as a sum of consecutive naturals, for example, 37734 + ... + 39979.

It is an arithmetic number, because the mean of its divisors is an integer number (21837634).

Almost surely, 2^87271699 is an apocalyptic number.

87271699 is a deficient number, since it is larger than the sum of its proper divisors (78837).

87271699 is a wasteful number, since it uses less digits than its factorization.

87271699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78836.

The product of its digits is 381024, while the sum is 49.

The square root of 87271699 is about 9341.9322947664. The cubic root of 87271699 is about 443.5655514856.

The spelling of 87271699 in words is "eighty-seven million, two hundred seventy-one thousand, six hundred ninety-nine".