273968689 has 2 divisors, whose sum is σ = 273968690. Its totient is φ = 273968688.

The previous prime is 273968579. The next prime is 273968701. The reversal of 273968689 is 986869372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139594225 + 134374464 = 11815^2 + 11592^2 .

It is a cyclic number.

It is not a de Polignac number, because 273968689 - 2¹³ = 273960497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (273966689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136984344 + 136984345.

It is an arithmetic number, because the mean of its divisors is an integer number (136984345).

Almost surely, 2^273968689 is an apocalyptic number.

It is an amenable number.

273968689 is a deficient number, since it is larger than the sum of its proper divisors (1).

273968689 is an equidigital number, since it uses as much as digits as its factorization.

273968689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 58.

The square root of 273968689 is about 16551.9995468825. Note that the first 3 decimals coincide. The cubic root of 273968689 is about 649.4817873591.

The spelling of 273968689 in words is "two hundred seventy-three million, nine hundred sixty-eight thousand, six hundred eighty-nine".