1069256887 has 2 divisors, whose sum is σ = 1069256888. Its totient is φ = 1069256886.

The previous prime is 1069256873. The next prime is 1069256897. The reversal of 1069256887 is 7886529601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1069256887 - 2⁷ = 1069256759 is a prime.

It is a super-2 number, since 2×1069256887² = 2286620580793861538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1069256827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534628443 + 534628444.

It is an arithmetic number, because the mean of its divisors is an integer number (534628444).

Almost surely, 2^1069256887 is an apocalyptic number.

1069256887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1069256887 is an equidigital number, since it uses as much as digits as its factorization.

1069256887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The square root of 1069256887 is about 32699.4936810954. The cubic root of 1069256887 is about 1022.5722872597.

The spelling of 1069256887 in words is "one billion, sixty-nine million, two hundred fifty-six thousand, eight hundred eighty-seven".