169000789 has 2 divisors, whose sum is σ = 169000790. Its totient is φ = 169000788.

The previous prime is 169000781. The next prime is 169000813. The reversal of 169000789 is 987000961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125216100 + 43784689 = 11190^2 + 6617^2 .

It is a cyclic number.

It is not a de Polignac number, because 169000789 - 2³ = 169000781 is a prime.

It is a super-2 number, since 2×169000789² = 57122533365245042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169000781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84500394 + 84500395.

It is an arithmetic number, because the mean of its divisors is an integer number (84500395).

Almost surely, 2^169000789 is an apocalyptic number.

It is an amenable number.

169000789 is a deficient number, since it is larger than the sum of its proper divisors (1).

169000789 is an equidigital number, since it uses as much as digits as its factorization.

169000789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 169000789 is about 13000.0303461184. The cubic root of 169000789 is about 552.8783417617.

The spelling of 169000789 in words is "one hundred sixty-nine million, seven hundred eighty-nine", and thus it is an aban number.