164675647 has 2 divisors, whose sum is σ = 164675648. Its totient is φ = 164675646.

The previous prime is 164675633. The next prime is 164675657. The reversal of 164675647 is 746576461.

It is a strong prime.

It is an emirp because it is prime and its reverse (746576461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164675647 - 2⁷ = 164675519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164675597 and 164675606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164675657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82337823 + 82337824.

It is an arithmetic number, because the mean of its divisors is an integer number (82337824).

Almost surely, 2^164675647 is an apocalyptic number.

164675647 is a deficient number, since it is larger than the sum of its proper divisors (1).

164675647 is an equidigital number, since it uses as much as digits as its factorization.

164675647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 46.

The square root of 164675647 is about 12832.6009444695. The cubic root of 164675647 is about 548.1210228295.

The spelling of 164675647 in words is "one hundred sixty-four million, six hundred seventy-five thousand, six hundred forty-seven".