9169889 has 2 divisors, whose sum is σ = 9169890. Its totient is φ = 9169888.

The previous prime is 9169877. The next prime is 9169921. The reversal of 9169889 is 9889619.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9102289 + 67600 = 3017^2 + 260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9169889 is a prime.

It is not a weakly prime, because it can be changed into another prime (9169819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4584944 + 4584945.

It is an arithmetic number, because the mean of its divisors is an integer number (4584945).

Almost surely, 2^9169889 is an apocalyptic number.

It is an amenable number.

9169889 is a deficient number, since it is larger than the sum of its proper divisors (1).

9169889 is an equidigital number, since it uses as much as digits as its factorization.

9169889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 50.

The square root of 9169889 is about 3028.1824581752. The cubic root of 9169889 is about 209.3090594755.

The spelling of 9169889 in words is "nine million, one hundred sixty-nine thousand, eight hundred eighty-nine".