2806369 has 2 divisors, whose sum is σ = 2806370. Its totient is φ = 2806368.

The previous prime is 2806367. The next prime is 2806373. The reversal of 2806369 is 9636082.

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., 1782225 + 1024144 = 1335^2 + 1012^2 .

It is a cyclic number.

It is not a de Polignac number, because 2806369 - 2¹ = 2806367 is a prime.

It is a super-2 number, since 2×2806369² = 15751413928322, which contains 22 as substring.

Together with 2806367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2806361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1403184 + 1403185.

It is an arithmetic number, because the mean of its divisors is an integer number (1403185).

2^2806369 is an apocalyptic number.

It is an amenable number.

2806369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2806369 is an equidigital number, since it uses as much as digits as its factorization.

2806369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 2806369 is about 1675.2220748307. Note that the first 3 decimals coincide. The cubic root of 2806369 is about 141.0527609667.

The spelling of 2806369 in words is "two million, eight hundred six thousand, three hundred sixty-nine".