163906086 has 16 divisors (see below), whose sum is σ = 339116400. Its totient is φ = 52751328.

The previous prime is 163906081. The next prime is 163906087. The reversal of 163906086 is 680609361.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163906081) 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, 470821 + ... + 471168.

It is an arithmetic number, because the mean of its divisors is an integer number (21194775).

Almost surely, 2^163906086 is an apocalyptic number.

163906086 is an abundant number, since it is smaller than the sum of its proper divisors (175210314).

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

163906086 is a wasteful number, since it uses less digits than its factorization.

163906086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942023.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 163906086 is about 12802.5812241126. The cubic root of 163906086 is about 547.2658643167.

The spelling of 163906086 in words is "one hundred sixty-three million, nine hundred six thousand, eighty-six".