28673369 has 2 divisors, whose sum is σ = 28673370. Its totient is φ = 28673368.

The previous prime is 28673363. The next prime is 28673377. The reversal of 28673369 is 96337682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25120144 + 3553225 = 5012^2 + 1885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28673369 is a prime.

It is a super-2 number, since 2×28673369² = 1644324179620322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (28673363) 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, 14336684 + 14336685.

It is an arithmetic number, because the mean of its divisors is an integer number (14336685).

Almost surely, 2^28673369 is an apocalyptic number.

It is an amenable number.

28673369 is a deficient number, since it is larger than the sum of its proper divisors (1).

28673369 is an equidigital number, since it uses as much as digits as its factorization.

28673369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 44.

The square root of 28673369 is about 5354.7520017271. The cubic root of 28673369 is about 306.0738604510.

The spelling of 28673369 in words is "twenty-eight million, six hundred seventy-three thousand, three hundred sixty-nine".