276387473 has 2 divisors, whose sum is σ = 276387474. Its totient is φ = 276387472.

The previous prime is 276387469. The next prime is 276387533. The reversal of 276387473 is 374783672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263477824 + 12909649 = 16232^2 + 3593^2 .

It is a cyclic number.

It is not a de Polignac number, because 276387473 - 2² = 276387469 is a prime.

It is a super-3 number, since 3×276387473³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (276387403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138193736 + 138193737.

It is an arithmetic number, because the mean of its divisors is an integer number (138193737).

Almost surely, 2^276387473 is an apocalyptic number.

It is an amenable number.

276387473 is a deficient number, since it is larger than the sum of its proper divisors (1).

276387473 is an equidigital number, since it uses as much as digits as its factorization.

276387473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1185408, while the sum is 47.

The square root of 276387473 is about 16624.9052027372. The cubic root of 276387473 is about 651.3875471548.

The spelling of 276387473 in words is "two hundred seventy-six million, three hundred eighty-seven thousand, four hundred seventy-three".