86759988 has 36 divisors (see below), whose sum is σ = 235492992. Its totient is φ = 24788400.

The previous prime is 86759971. The next prime is 86760013. The reversal of 86759988 is 88995768.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73188 + ... + 74363.

It is an arithmetic number, because the mean of its divisors is an integer number (6541472).

Almost surely, 2^86759988 is an apocalyptic number.

It is an amenable number.

86759988 is an abundant number, since it is smaller than the sum of its proper divisors (148733004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86759988 is a wasteful number, since it uses less digits than its factorization.

86759988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147572 (or 147563 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 60.

The square root of 86759988 is about 9314.5041735994. The cubic root of 86759988 is about 442.6969138599.

The spelling of 86759988 in words is "eighty-six million, seven hundred fifty-nine thousand, nine hundred eighty-eight".