86167540 has 12 divisors (see below), whose sum is σ = 180951876. Its totient is φ = 34467008.

The previous prime is 86167513. The next prime is 86167579. The reversal of 86167540 is 4576168.

It can be written as a sum of positive squares in 2 ways, for example, as 25140196 + 61027344 = 5014^2 + 7812^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 86167540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2154169 + ... + 2154208.

It is an arithmetic number, because the mean of its divisors is an integer number (15079323).

Almost surely, 2^86167540 is an apocalyptic number.

It is an amenable number.

86167540 is an abundant number, since it is smaller than the sum of its proper divisors (94784336).

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

86167540 is a wasteful number, since it uses less digits than its factorization.

86167540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4308386 (or 4308384 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 86167540 is about 9282.6472517273. The cubic root of 86167540 is about 441.6869468952.

The spelling of 86167540 in words is "eighty-six million, one hundred sixty-seven thousand, five hundred forty".