28671017 has 2 divisors, whose sum is σ = 28671018. Its totient is φ = 28671016.

The previous prime is 28671011. The next prime is 28671023. The reversal of 28671017 is 71017682.

It is a balanced prime because it is at equal distance from previous prime (28671011) and next prime (28671023).

It can be written as a sum of positive squares in only one way, i.e., 28344976 + 326041 = 5324^2 + 571^2 .

It is a cyclic number.

It is not a de Polignac number, because 28671017 - 2⁶ = 28670953 is a prime.

It is not a weakly prime, because it can be changed into another prime (28671011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14335508 + 14335509.

It is an arithmetic number, because the mean of its divisors is an integer number (14335509).

Almost surely, 2^28671017 is an apocalyptic number.

It is an amenable number.

28671017 is a deficient number, since it is larger than the sum of its proper divisors (1).

28671017 is an equidigital number, since it uses as much as digits as its factorization.

28671017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 28671017 is about 5354.5323792092. The cubic root of 28671017 is about 306.0654914146.

Adding to 28671017 its reverse (71017682), we get a palindrome (99688699).

The spelling of 28671017 in words is "twenty-eight million, six hundred seventy-one thousand, seventeen".