273743489 has 2 divisors, whose sum is σ = 273743490. Its totient is φ = 273743488.

The previous prime is 273743479. The next prime is 273743497. The reversal of 273743489 is 984347372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242829889 + 30913600 = 15583^2 + 5560^2 .

It is a cyclic number.

It is not a de Polignac number, because 273743489 - 2¹⁶ = 273677953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (273743479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136871744 + 136871745.

It is an arithmetic number, because the mean of its divisors is an integer number (136871745).

Almost surely, 2^273743489 is an apocalyptic number.

It is an amenable number.

273743489 is a deficient number, since it is larger than the sum of its proper divisors (1).

273743489 is an equidigital number, since it uses as much as digits as its factorization.

273743489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 47.

The square root of 273743489 is about 16545.1953448728. The cubic root of 273743489 is about 649.3037823553.

The spelling of 273743489 in words is "two hundred seventy-three million, seven hundred forty-three thousand, four hundred eighty-nine".