28086743 has 2 divisors, whose sum is σ = 28086744. Its totient is φ = 28086742.

The previous prime is 28086733. The next prime is 28086803. The reversal of 28086743 is 34768082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28086743 - 2⁴ = 28086727 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28086697 and 28086706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28086733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14043371 + 14043372.

It is an arithmetic number, because the mean of its divisors is an integer number (14043372).

Almost surely, 2^28086743 is an apocalyptic number.

28086743 is a deficient number, since it is larger than the sum of its proper divisors (1).

28086743 is an equidigital number, since it uses as much as digits as its factorization.

28086743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 28086743 is about 5299.6927269418. The cubic root of 28086743 is about 303.9721487354.

The spelling of 28086743 in words is "twenty-eight million, eighty-six thousand, seven hundred forty-three".