87886539 has 48 divisors (see below), whose sum is σ = 145297152. Its totient is φ = 52744608.

The previous prime is 87886537. The next prime is 87886553. The reversal of 87886539 is 93568878.

It is a happy number.

It is not a de Polignac number, because 87886539 - 2¹ = 87886537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87886537) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135514 + ... + 136160.

It is an arithmetic number, because the mean of its divisors is an integer number (3027024).

Almost surely, 2^87886539 is an apocalyptic number.

87886539 is a deficient number, since it is larger than the sum of its proper divisors (57410613).

87886539 is a wasteful number, since it uses less digits than its factorization.

87886539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718 (or 706 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 87886539 is about 9374.7820774672. The cubic root of 87886539 is about 444.6047730150.

The spelling of 87886539 in words is "eighty-seven million, eight hundred eighty-six thousand, five hundred thirty-nine".