276343 has 2 divisors, whose sum is σ = 276344. Its totient is φ = 276342.

The previous prime is 276337. The next prime is 276347. The reversal of 276343 is 343672.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276343 is a prime.

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

276343 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (276347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138171 + 138172.

It is an arithmetic number, because the mean of its divisors is an integer number (138172).

2²⁷⁶³⁴³ is an apocalyptic number.

276343 is a deficient number, since it is larger than the sum of its proper divisors (1).

276343 is an equidigital number, since it uses as much as digits as its factorization.

276343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 25.

The square root of 276343 is about 525.6833647739. The cubic root of 276343 is about 65.1352607423.

The spelling of 276343 in words is "two hundred seventy-six thousand, three hundred forty-three".