86753988 has 18 divisors (see below), whose sum is σ = 219294894. Its totient is φ = 28917984.

The previous prime is 86753983. The next prime is 86754023. The reversal of 86753988 is 88935768.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 78004224 + 8749764 = 8832^2 + 2958^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (86753983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1204881 + ... + 1204952.

Almost surely, 2^86753988 is an apocalyptic number.

It is an amenable number.

86753988 is an abundant number, since it is smaller than the sum of its proper divisors (132540906).

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

86753988 is a wasteful number, since it uses less digits than its factorization.

86753988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409843 (or 2409838 counting only the distinct ones).

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

The square root of 86753988 is about 9314.1820896953. The cubic root of 86753988 is about 442.6867085307.

The spelling of 86753988 in words is "eighty-six million, seven hundred fifty-three thousand, nine hundred eighty-eight".