168388086 has 16 divisors (see below), whose sum is σ = 344608704. Its totient is φ = 54823944.

The previous prime is 168388081. The next prime is 168388091. The reversal of 168388086 is 680883861.

It is a happy number.

168388086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (168388081) and next prime (168388091).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168388081) 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, 326076 + ... + 326591.

It is an arithmetic number, because the mean of its divisors is an integer number (21538044).

Almost surely, 2^168388086 is an apocalyptic number.

168388086 is an abundant number, since it is smaller than the sum of its proper divisors (176220618).

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

168388086 is a wasteful number, since it uses less digits than its factorization.

168388086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652715.

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

The square root of 168388086 is about 12976.4435035182. The cubic root of 168388086 is about 552.2093894241.

The spelling of 168388086 in words is "one hundred sixty-eight million, three hundred eighty-eight thousand, eighty-six".