276461 has 2 divisors, whose sum is σ = 276462. Its totient is φ = 276460.

The previous prime is 276449. The next prime is 276467. The reversal of 276461 is 164672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265225 + 11236 = 515^2 + 106^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 276461.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 276461.

It is not a weakly prime, because it can be changed into another prime (276467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138230 + 138231.

It is an arithmetic number, because the mean of its divisors is an integer number (138231).

2²⁷⁶⁴⁶¹ is an apocalyptic number.

It is an amenable number.

276461 is a deficient number, since it is larger than the sum of its proper divisors (1).

276461 is an equidigital number, since it uses as much as digits as its factorization.

276461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 26.

The square root of 276461 is about 525.7955876574. The cubic root of 276461 is about 65.1445304627.

It can be divided in two parts, 276 and 461, that added together give a palindrome (737).

The spelling of 276461 in words is "two hundred seventy-six thousand, four hundred sixty-one".