2628169 has 2 divisors, whose sum is σ = 2628170. Its totient is φ = 2628168.

The previous prime is 2628167. The next prime is 2628191. The reversal of 2628169 is 9618262.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2496400 + 131769 = 1580^2 + 363^2 .

It is a cyclic number.

It is not a de Polignac number, because 2628169 - 2¹ = 2628167 is a prime.

It is a super-2 number, since 2×2628169² = 13814544585122, which contains 22 as substring.

Together with 2628167, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2628163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314084 + 1314085.

It is an arithmetic number, because the mean of its divisors is an integer number (1314085).

2^2628169 is an apocalyptic number.

It is an amenable number.

2628169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628169 is an equidigital number, since it uses as much as digits as its factorization.

2628169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 2628169 is about 1621.1628542500. The cubic root of 2628169 is about 138.0016978017.

The spelling of 2628169 in words is "two million, six hundred twenty-eight thousand, one hundred sixty-nine".