86168436 has 12 divisors (see below), whose sum is σ = 201059712. Its totient is φ = 28722808.

The previous prime is 86168413. The next prime is 86168473. The reversal of 86168436 is 63486168.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3590340 + ... + 3590363.

It is an arithmetic number, because the mean of its divisors is an integer number (16754976).

Almost surely, 2^86168436 is an apocalyptic number.

It is an amenable number.

86168436 is an abundant number, since it is smaller than the sum of its proper divisors (114891276).

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

86168436 is a wasteful number, since it uses less digits than its factorization.

86168436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7180710 (or 7180708 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 86168436 is about 9282.6955136964. The cubic root of 86168436 is about 441.6884778280.

The spelling of 86168436 in words is "eighty-six million, one hundred sixty-eight thousand, four hundred thirty-six".