28018763 has 2 divisors, whose sum is σ = 28018764. Its totient is φ = 28018762.

The previous prime is 28018747. The next prime is 28018789. The reversal of 28018763 is 36781082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28018763 - 2⁴ = 28018747 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28018723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14009381 + 14009382.

It is an arithmetic number, because the mean of its divisors is an integer number (14009382).

Almost surely, 2^28018763 is an apocalyptic number.

28018763 is a deficient number, since it is larger than the sum of its proper divisors (1).

28018763 is an equidigital number, since it uses as much as digits as its factorization.

28018763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 28018763 is about 5293.2752620660. The cubic root of 28018763 is about 303.7267100412.

The spelling of 28018763 in words is "twenty-eight million, eighteen thousand, seven hundred sixty-three".