274689 has 12 divisors (see below), whose sum is σ = 414336. Its totient is φ = 175032.

The previous prime is 274679. The next prime is 274693. The reversal of 274689 is 986472.

It is not a de Polignac number, because 274689 - 2⁹ = 274177 is a prime.

It is a Curzon number.

274689 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (274609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 457 + ... + 870.

It is an arithmetic number, because the mean of its divisors is an integer number (34528).

2²⁷⁴⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

274689 is a deficient number, since it is larger than the sum of its proper divisors (139647).

274689 is a wasteful number, since it uses less digits than its factorization.

274689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 1353 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 274689 is about 524.1078133361. The cubic root of 274689 is about 65.0050489175.

It can be divided in two parts, 2 and 74689, that added together give a triangular number (74691 = T₃₈₆).

The spelling of 274689 in words is "two hundred seventy-four thousand, six hundred eighty-nine".