86161856 has 28 divisors (see below), whose sum is σ = 186522360. Its totient is φ = 39164160.

The previous prime is 86161853. The next prime is 86161877. The reversal of 86161856 is 65816168.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86161853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60491 + ... + 61898.

Almost surely, 2^86161856 is an apocalyptic number.

It is an amenable number.

86161856 is an abundant number, since it is smaller than the sum of its proper divisors (100360504).

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

86161856 is a wasteful number, since it uses less digits than its factorization.

86161856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122412 (or 122402 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 86161856 is about 9282.3410840154. The cubic root of 86161856 is about 441.6772347932.

The spelling of 86161856 in words is "eighty-six million, one hundred sixty-one thousand, eight hundred fifty-six".