28006763 has 2 divisors, whose sum is σ = 28006764. Its totient is φ = 28006762.

The previous prime is 28006757. The next prime is 28006777. The reversal of 28006763 is 36760082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28006763 - 2⁸ = 28006507 is a prime.

It is not a weakly prime, because it can be changed into another prime (28006753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14003381 + 14003382.

It is an arithmetic number, because the mean of its divisors is an integer number (14003382).

Almost surely, 2^28006763 is an apocalyptic number.

28006763 is a deficient number, since it is larger than the sum of its proper divisors (1).

28006763 is an equidigital number, since it uses as much as digits as its factorization.

28006763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 28006763 is about 5292.1416269786. The cubic root of 28006763 is about 303.6833433757.

The spelling of 28006763 in words is "twenty-eight million, six thousand, seven hundred sixty-three".