260277887 has 2 divisors, whose sum is σ = 260277888. Its totient is φ = 260277886.

The previous prime is 260277877. The next prime is 260277889. The reversal of 260277887 is 788772062.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260277887 - 2²⁴ = 243500671 is a prime.

It is a super-2 number, since 2×260277887² = 135489156922369538, which contains 22 as substring.

Together with 260277889, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260277889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130138943 + 130138944.

It is an arithmetic number, because the mean of its divisors is an integer number (130138944).

Almost surely, 2^260277887 is an apocalyptic number.

260277887 is a deficient number, since it is larger than the sum of its proper divisors (1).

260277887 is an equidigital number, since it uses as much as digits as its factorization.

260277887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 526848, while the sum is 47.

The square root of 260277887 is about 16133.1301054693. The cubic root of 260277887 is about 638.4777354590.

The spelling of 260277887 in words is "two hundred sixty million, two hundred seventy-seven thousand, eight hundred eighty-seven".