274621 has 4 divisors (see below), whose sum is σ = 280512. Its totient is φ = 268732.

The previous prime is 274609. The next prime is 274627. The reversal of 274621 is 126472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 274592 and 274601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274627) 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, 2875 + ... + 2968.

It is an arithmetic number, because the mean of its divisors is an integer number (70128).

274621 is a Friedman number, since it can be written as (67-2)^(2+1)-4, using all its digits and the basic arithmetic operations.

2²⁷⁴⁶²¹ is an apocalyptic number.

It is an amenable number.

274621 is a deficient number, since it is larger than the sum of its proper divisors (5891).

274621 is an equidigital number, since it uses as much as digits as its factorization.

274621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5890.

The product of its digits is 672, while the sum is 22.

The square root of 274621 is about 524.0429371721. The cubic root of 274621 is about 64.9996844166. Note that the first 3 decimals are identical.

The spelling of 274621 in words is "two hundred seventy-four thousand, six hundred twenty-one".