164327986 has 8 divisors (see below), whose sum is σ = 246624300. Its totient is φ = 82119888.

The previous prime is 164327981. The next prime is 164327987. The reversal of 164327986 is 689723461.

164327986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 164326761 + 1225 = 12819^2 + 35^2 .

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

It is not an unprimeable number, because it can be changed into a prime (164327981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17181 + ... + 24976.

Almost surely, 2^164327986 is an apocalyptic number.

164327986 is a deficient number, since it is larger than the sum of its proper divisors (82296314).

164327986 is a wasteful number, since it uses less digits than its factorization.

164327986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44108.

The product of its digits is 435456, while the sum is 46.

The square root of 164327986 is about 12819.0477805491. The cubic root of 164327986 is about 547.7350224975.

The spelling of 164327986 in words is "one hundred sixty-four million, three hundred twenty-seven thousand, nine hundred eighty-six".