28817333 has 2 divisors, whose sum is σ = 28817334. Its totient is φ = 28817332.

The previous prime is 28817323. The next prime is 28817359. The reversal of 28817333 is 33371882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26234884 + 2582449 = 5122^2 + 1607^2 .

It is a cyclic number.

It is not a de Polignac number, because 28817333 - 2⁴ = 28817317 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28817293 and 28817302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28817323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14408666 + 14408667.

It is an arithmetic number, because the mean of its divisors is an integer number (14408667).

Almost surely, 2^28817333 is an apocalyptic number.

It is an amenable number.

28817333 is a deficient number, since it is larger than the sum of its proper divisors (1).

28817333 is an equidigital number, since it uses as much as digits as its factorization.

28817333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 28817333 is about 5368.1778100208. The cubic root of 28817333 is about 306.5852534095.

The spelling of 28817333 in words is "twenty-eight million, eight hundred seventeen thousand, three hundred thirty-three".