164000789 has 2 divisors, whose sum is σ = 164000790. Its totient is φ = 164000788.

The previous prime is 164000783. The next prime is 164000797. The reversal of 164000789 is 987000461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133287025 + 30713764 = 11545^2 + 5542^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164000789 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164000783) 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, 82000394 + 82000395.

It is an arithmetic number, because the mean of its divisors is an integer number (82000395).

Almost surely, 2^164000789 is an apocalyptic number.

It is an amenable number.

164000789 is a deficient number, since it is larger than the sum of its proper divisors (1).

164000789 is an equidigital number, since it uses as much as digits as its factorization.

164000789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 164000789 is about 12806.2792801032. The cubic root of 164000789 is about 547.3712452736.

The spelling of 164000789 in words is "one hundred sixty-four million, seven hundred eighty-nine", and thus it is an aban number.