28047763 has 2 divisors, whose sum is σ = 28047764. Its totient is φ = 28047762.

The previous prime is 28047757. The next prime is 28047793. The reversal of 28047763 is 36774082.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28047763 is a prime.

It is not a weakly prime, because it can be changed into another prime (28047703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14023881 + 14023882.

It is an arithmetic number, because the mean of its divisors is an integer number (14023882).

Almost surely, 2^28047763 is an apocalyptic number.

28047763 is a deficient number, since it is larger than the sum of its proper divisors (1).

28047763 is an equidigital number, since it uses as much as digits as its factorization.

28047763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 28047763 is about 5296.0138783806. The cubic root of 28047763 is about 303.8314617212.

The spelling of 28047763 in words is "twenty-eight million, forty-seven thousand, seven hundred sixty-three".