87959539 has 4 divisors (see below), whose sum is σ = 88738056. Its totient is φ = 87181024.

The previous prime is 87959537. The next prime is 87959551. The reversal of 87959539 is 93595978.

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 87959539 - 2¹ = 87959537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87959539.

It is not an unprimeable number, because it can be changed into a prime (87959533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389089 + ... + 389314.

It is an arithmetic number, because the mean of its divisors is an integer number (22184514).

Almost surely, 2^87959539 is an apocalyptic number.

87959539 is a deficient number, since it is larger than the sum of its proper divisors (778517).

87959539 is a wasteful number, since it uses less digits than its factorization.

87959539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778516.

The product of its digits is 3061800, while the sum is 55.

The square root of 87959539 is about 9378.6746931536. The cubic root of 87959539 is about 444.7278376191.

The spelling of 87959539 in words is "eighty-seven million, nine hundred fifty-nine thousand, five hundred thirty-nine".