28569763 has 2 divisors, whose sum is σ = 28569764. Its totient is φ = 28569762.

The previous prime is 28569757. The next prime is 28569767. The reversal of 28569763 is 36796582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28569763 - 2¹⁷ = 28438691 is a prime.

It is not a weakly prime, because it can be changed into another prime (28569767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14284881 + 14284882.

It is an arithmetic number, because the mean of its divisors is an integer number (14284882).

Almost surely, 2^28569763 is an apocalyptic number.

28569763 is a deficient number, since it is larger than the sum of its proper divisors (1).

28569763 is an equidigital number, since it uses as much as digits as its factorization.

28569763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 28569763 is about 5345.0690360369. The cubic root of 28569763 is about 305.7047681489.

The spelling of 28569763 in words is "twenty-eight million, five hundred sixty-nine thousand, seven hundred sixty-three".