28067887 has 2 divisors, whose sum is σ = 28067888. Its totient is φ = 28067886.

The previous prime is 28067849. The next prime is 28067891. The reversal of 28067887 is 78876082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28067887 - 2⁷ = 28067759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28067087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14033943 + 14033944.

It is an arithmetic number, because the mean of its divisors is an integer number (14033944).

Almost surely, 2^28067887 is an apocalyptic number.

28067887 is a deficient number, since it is larger than the sum of its proper divisors (1).

28067887 is an equidigital number, since it uses as much as digits as its factorization.

28067887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 28067887 is about 5297.9134572018. The cubic root of 28067887 is about 303.9041097324.

The spelling of 28067887 in words is "twenty-eight million, sixty-seven thousand, eight hundred eighty-seven".