276681497 has 2 divisors, whose sum is σ = 276681498. Its totient is φ = 276681496.

The previous prime is 276681473. The next prime is 276681529. The reversal of 276681497 is 794186672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149352841 + 127328656 = 12221^2 + 11284^2 .

It is a cyclic number.

It is not a de Polignac number, because 276681497 - 2¹⁴ = 276665113 is a prime.

It is a super-2 number, since 2×276681497² = 153105301564322018, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (276681437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138340748 + 138340749.

It is an arithmetic number, because the mean of its divisors is an integer number (138340749).

Almost surely, 2^276681497 is an apocalyptic number.

It is an amenable number.

276681497 is a deficient number, since it is larger than the sum of its proper divisors (1).

276681497 is an equidigital number, since it uses as much as digits as its factorization.

276681497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 50.

The square root of 276681497 is about 16633.7457296906. The cubic root of 276681497 is about 651.6184496812.

The spelling of 276681497 in words is "two hundred seventy-six million, six hundred eighty-one thousand, four hundred ninety-seven".