274889 has 2 divisors, whose sum is σ = 274890. Its totient is φ = 274888.

The previous prime is 274871. The next prime is 274909. The reversal of 274889 is 988472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270400 + 4489 = 520^2 + 67^2 .

It is a cyclic number.

It is not a de Polignac number, because 274889 - 2¹⁶ = 209353 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (274829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137444 + 137445.

It is an arithmetic number, because the mean of its divisors is an integer number (137445).

2²⁷⁴⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

274889 is a deficient number, since it is larger than the sum of its proper divisors (1).

274889 is an equidigital number, since it uses as much as digits as its factorization.

274889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 38.

The square root of 274889 is about 524.2985790559. The cubic root of 274889 is about 65.0208217317.

The spelling of 274889 in words is "two hundred seventy-four thousand, eight hundred eighty-nine".