168486861 has 8 divisors (see below), whose sum is σ = 224867104. Its totient is φ = 112215600.

The previous prime is 168486853. The next prime is 168486893. The reversal of 168486861 is 168684861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 168486861 - 2³ = 168486853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168486861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168486361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23566 + ... + 29871.

It is an arithmetic number, because the mean of its divisors is an integer number (28108388).

Almost surely, 2^168486861 is an apocalyptic number.

It is an amenable number.

168486861 is a deficient number, since it is larger than the sum of its proper divisors (56380243).

168486861 is a wasteful number, since it uses less digits than its factorization.

168486861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54491.

The product of its digits is 442368, while the sum is 48.

The square root of 168486861 is about 12980.2488805107. The cubic root of 168486861 is about 552.3173420751.

The spelling of 168486861 in words is "one hundred sixty-eight million, four hundred eighty-six thousand, eight hundred sixty-one".