87855711 has 12 divisors (see below), whose sum is σ = 124438152. Its totient is φ = 55124608.

The previous prime is 87855697. The next prime is 87855731. The reversal of 87855711 is 11755878.

It is not a de Polignac number, because 87855711 - 2¹⁷ = 87724639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87855731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49800 + ... + 51533.

It is an arithmetic number, because the mean of its divisors is an integer number (10369846).

Almost surely, 2^87855711 is an apocalyptic number.

87855711 is a deficient number, since it is larger than the sum of its proper divisors (36582441).

87855711 is a wasteful number, since it uses less digits than its factorization.

87855711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101370 (or 101353 counting only the distinct ones).

The product of its digits is 78400, while the sum is 42.

The square root of 87855711 is about 9373.1377350384. The cubic root of 87855711 is about 444.5527821982.

The spelling of 87855711 in words is "eighty-seven million, eight hundred fifty-five thousand, seven hundred eleven".