87811339 has 16 divisors (see below), whose sum is σ = 111119616. Its totient is φ = 67399200.

The previous prime is 87811303. The next prime is 87811343. The reversal of 87811339 is 93311878.

It is not a de Polignac number, because 87811339 - 2¹⁵ = 87778571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87812339) 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, 3352 + ... + 13669.

It is an arithmetic number, because the mean of its divisors is an integer number (6944976).

Almost surely, 2^87811339 is an apocalyptic number.

87811339 is a deficient number, since it is larger than the sum of its proper divisors (23308277).

87811339 is a wasteful number, since it uses less digits than its factorization.

87811339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17106.

The product of its digits is 36288, while the sum is 40.

The square root of 87811339 is about 9370.7704592525. The cubic root of 87811339 is about 444.4779283361.

The spelling of 87811339 in words is "eighty-seven million, eight hundred eleven thousand, three hundred thirty-nine".