276349 has 4 divisors (see below), whose sum is σ = 279136. Its totient is φ = 273564.

The previous prime is 276347. The next prime is 276359. The reversal of 276349 is 943672.

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 276349 - 2¹ = 276347 is a prime.

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

It is a Duffinian number.

276349 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 276349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276343) 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, 1239 + ... + 1444.

It is an arithmetic number, because the mean of its divisors is an integer number (69784).

2²⁷⁶³⁴⁹ is an apocalyptic number.

It is an amenable number.

276349 is a deficient number, since it is larger than the sum of its proper divisors (2787).

276349 is a wasteful number, since it uses less digits than its factorization.

276349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786.

The product of its digits is 9072, while the sum is 31.

The square root of 276349 is about 525.6890716003. The cubic root of 276349 is about 65.1357321477.

It can be divided in two parts, 276 and 349, that added together give a 4-th power (625 = 5⁴).

The spelling of 276349 in words is "two hundred seventy-six thousand, three hundred forty-nine".