274705 has 4 divisors (see below), whose sum is σ = 329652. Its totient is φ = 219760.

The previous prime is 274697. The next prime is 274709. The reversal of 274705 is 507472.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 166464 + 108241 = 408^2 + 329^2 .

It is not a de Polignac number, because 274705 - 2³ = 274697 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

274705 is a lucky number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 274705.

It is not an unprimeable number, because it can be changed into a prime (274709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27466 + ... + 27475.

It is an arithmetic number, because the mean of its divisors is an integer number (82413).

2²⁷⁴⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

274705 is a deficient number, since it is larger than the sum of its proper divisors (54947).

274705 is an equidigital number, since it uses as much as digits as its factorization.

274705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54946.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 274705 is about 524.1230771489. The cubic root of 274705 is about 65.0063110243.

It can be divided in two parts, 274 and 705, that added together give a palindrome (979).

The spelling of 274705 in words is "two hundred seventy-four thousand, seven hundred five".