273961 has 4 divisors (see below), whose sum is σ = 288400. Its totient is φ = 259524.

The previous prime is 273943. The next prime is 273967. The reversal of 273961 is 169372.

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 not a de Polignac number, because 273961 - 2⁵ = 273929 is a prime.

It is a Duffinian number.

273961 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (273967) 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, 7191 + ... + 7228.

It is an arithmetic number, because the mean of its divisors is an integer number (72100).

2²⁷³⁹⁶¹ is an apocalyptic number.

It is an amenable number.

273961 is a deficient number, since it is larger than the sum of its proper divisors (14439).

273961 is a wasteful number, since it uses less digits than its factorization.

273961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14438.

The product of its digits is 2268, while the sum is 28.

The square root of 273961 is about 523.4128389713. The cubic root of 273961 is about 64.9475711346.

The spelling of 273961 in words is "two hundred seventy-three thousand, nine hundred sixty-one".