87111411 has 16 divisors (see below), whose sum is σ = 118210560. Its totient is φ = 57049920.

The previous prime is 87111407. The next prime is 87111413. The reversal of 87111411 is 11411178.

It is not a de Polignac number, because 87111411 - 2² = 87111407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87111413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67470 + ... + 68748.

It is an arithmetic number, because the mean of its divisors is an integer number (7388160).

Almost surely, 2^87111411 is an apocalyptic number.

87111411 is a deficient number, since it is larger than the sum of its proper divisors (31099149).

87111411 is a wasteful number, since it uses less digits than its factorization.

87111411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666.

The product of its digits is 224, while the sum is 24.

The square root of 87111411 is about 9333.3493987957. The cubic root of 87111411 is about 443.2938261036.

Adding to 87111411 its reverse (11411178), we get a palindrome (98522589).

The spelling of 87111411 in words is "eighty-seven million, one hundred eleven thousand, four hundred eleven".