8787278887 has 2 divisors, whose sum is σ = 8787278888. Its totient is φ = 8787278886.

The previous prime is 8787278849. The next prime is 8787278891. The reversal of 8787278887 is 7888727878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8787278887 - 2²⁷ = 8653061159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8787278827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4393639443 + 4393639444.

It is an arithmetic number, because the mean of its divisors is an integer number (4393639444).

Almost surely, 2^8787278887 is an apocalyptic number.

8787278887 is a deficient number, since it is larger than the sum of its proper divisors (1).

8787278887 is an equidigital number, since it uses as much as digits as its factorization.

8787278887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157351936, while the sum is 70.

The square root of 8787278887 is about 93740.4869146731. The cubic root of 8787278887 is about 2063.5649214617.

The spelling of 8787278887 in words is "eight billion, seven hundred eighty-seven million, two hundred seventy-eight thousand, eight hundred eighty-seven".