164689706 has 8 divisors (see below), whose sum is σ = 257775264. Its totient is φ = 78764620.

The previous prime is 164689643. The next prime is 164689717. The reversal of 164689706 is 607986461.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1790060 + ... + 1790151.

It is an arithmetic number, because the mean of its divisors is an integer number (32221908).

Almost surely, 2^164689706 is an apocalyptic number.

164689706 is a deficient number, since it is larger than the sum of its proper divisors (93085558).

164689706 is a wasteful number, since it uses less digits than its factorization.

164689706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3580236.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 164689706 is about 12833.1487172868. The cubic root of 164689706 is about 548.1366207929.

The spelling of 164689706 in words is "one hundred sixty-four million, six hundred eighty-nine thousand, seven hundred six".