274739 has 2 divisors, whose sum is σ = 274740. Its totient is φ = 274738.

The previous prime is 274723. The next prime is 274751. The reversal of 274739 is 937472.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 274739 - 2⁴ = 274723 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (274709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137369 + 137370.

It is an arithmetic number, because the mean of its divisors is an integer number (137370).

2²⁷⁴⁷³⁹ is an apocalyptic number.

274739 is a deficient number, since it is larger than the sum of its proper divisors (1).

274739 is an equidigital number, since it uses as much as digits as its factorization.

274739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 32.

The square root of 274739 is about 524.1555112750. The cubic root of 274739 is about 65.0089928386.

The spelling of 274739 in words is "two hundred seventy-four thousand, seven hundred thirty-nine".