28000463 has 2 divisors, whose sum is σ = 28000464. Its totient is φ = 28000462.

The previous prime is 28000451. The next prime is 28000477. The reversal of 28000463 is 36400082.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28000463 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28000163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14000231 + 14000232.

It is an arithmetic number, because the mean of its divisors is an integer number (14000232).

Almost surely, 2^28000463 is an apocalyptic number.

28000463 is a deficient number, since it is larger than the sum of its proper divisors (1).

28000463 is an equidigital number, since it uses as much as digits as its factorization.

28000463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 28000463 is about 5291.5463713361. The cubic root of 28000463 is about 303.6605709173.

The spelling of 28000463 in words is "twenty-eight million, four hundred sixty-three", and thus it is an aban number.