2694689 has 2 divisors, whose sum is σ = 2694690. Its totient is φ = 2694688.

The previous prime is 2694677. The next prime is 2694691. The reversal of 2694689 is 9864962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2560000 + 134689 = 1600^2 + 367^2 .

It is a cyclic number.

It is not a de Polignac number, because 2694689 - 2¹² = 2690593 is a prime.

It is a super-2 number, since 2×2694689² = 14522697613442, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2694691, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2694089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1347344 + 1347345.

It is an arithmetic number, because the mean of its divisors is an integer number (1347345).

2^2694689 is an apocalyptic number.

It is an amenable number.

2694689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2694689 is an equidigital number, since it uses as much as digits as its factorization.

2694689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 44.

The square root of 2694689 is about 1641.5507911728. The cubic root of 2694689 is about 139.1563033068.

The spelling of 2694689 in words is "two million, six hundred ninety-four thousand, six hundred eighty-nine".