2689169 has 6 divisors (see below), whose sum is σ = 3128274. Its totient is φ = 2304960.

The previous prime is 2689163. The next prime is 2689171. The reversal of 2689169 is 9619862.

It can be written as a sum of positive squares in only one way, i.e., 1658944 + 1030225 = 1288^2 + 1015^2 .

It is not a de Polignac number, because 2689169 - 2⁸ = 2688913 is a prime.

It is a super-2 number, since 2×2689169² = 14463259821122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27392 + ... + 27489.

It is an arithmetic number, because the mean of its divisors is an integer number (521379).

2^2689169 is an apocalyptic number.

It is an amenable number.

2689169 is a deficient number, since it is larger than the sum of its proper divisors (439105).

2689169 is an equidigital number, since it uses as much as digits as its factorization.

2689169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54895 (or 54888 counting only the distinct ones).

The product of its digits is 46656, while the sum is 41.

The square root of 2689169 is about 1639.8685922963. The cubic root of 2689169 is about 139.0612190010.

The spelling of 2689169 in words is "two million, six hundred eighty-nine thousand, one hundred sixty-nine".