163723086 has 64 divisors (see below), whose sum is σ = 378181440. Its totient is φ = 52462080.

The previous prime is 163723081. The next prime is 163723093. The reversal of 163723086 is 680327361.

It is a happy number.

163723086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 163723086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163723081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161116 + ... + 162128.

It is an arithmetic number, because the mean of its divisors is an integer number (5909085).

Almost surely, 2^163723086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163723086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189090720).

163723086 is an abundant number, since it is smaller than the sum of its proper divisors (214458354).

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

163723086 is a wasteful number, since it uses less digits than its factorization.

163723086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 163723086 is about 12795.4322318552. The cubic root of 163723086 is about 547.0621156318.

The spelling of 163723086 in words is "one hundred sixty-three million, seven hundred twenty-three thousand, eighty-six".