87727871 has 32 divisors (see below), whose sum is σ = 119854080. Its totient is φ = 62092800.

The previous prime is 87727853. The next prime is 87727877. The reversal of 87727871 is 17872778.

It is a happy number.

It is not a de Polignac number, because 87727871 - 2¹⁴ = 87711487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87727877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36806 + ... + 39116.

It is an arithmetic number, because the mean of its divisors is an integer number (3745440).

Almost surely, 2^87727871 is an apocalyptic number.

87727871 is a deficient number, since it is larger than the sum of its proper divisors (32126209).

87727871 is a wasteful number, since it uses less digits than its factorization.

87727871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375.

The product of its digits is 307328, while the sum is 47.

The square root of 87727871 is about 9366.3157644829. The cubic root of 87727871 is about 444.3370526616.

The spelling of 87727871 in words is "eighty-seven million, seven hundred twenty-seven thousand, eight hundred seventy-one".