260687473 has 2 divisors, whose sum is σ = 260687474. Its totient is φ = 260687472.

The previous prime is 260687447. The next prime is 260687489. The reversal of 260687473 is 374786062.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164019249 + 96668224 = 12807^2 + 9832^2 .

It is a cyclic number.

It is not a de Polignac number, because 260687473 - 2⁹ = 260686961 is a prime.

It is not a weakly prime, because it can be changed into another prime (260687173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130343736 + 130343737.

It is an arithmetic number, because the mean of its divisors is an integer number (130343737).

Almost surely, 2^260687473 is an apocalyptic number.

It is an amenable number.

260687473 is a deficient number, since it is larger than the sum of its proper divisors (1).

260687473 is an equidigital number, since it uses as much as digits as its factorization.

260687473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 260687473 is about 16145.8190563378. The cubic root of 260687473 is about 638.8124731872.

The spelling of 260687473 in words is "two hundred sixty million, six hundred eighty-seven thousand, four hundred seventy-three".