28748333 has 2 divisors, whose sum is σ = 28748334. Its totient is φ = 28748332.

The previous prime is 28748327. The next prime is 28748341. The reversal of 28748333 is 33384782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18003049 + 10745284 = 4243^2 + 3278^2 .

It is a cyclic number.

It is not a de Polignac number, because 28748333 - 2¹⁴ = 28731949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28748353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14374166 + 14374167.

It is an arithmetic number, because the mean of its divisors is an integer number (14374167).

Almost surely, 2^28748333 is an apocalyptic number.

It is an amenable number.

28748333 is a deficient number, since it is larger than the sum of its proper divisors (1).

28748333 is an equidigital number, since it uses as much as digits as its factorization.

28748333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 38.

The square root of 28748333 is about 5361.7471965769. The cubic root of 28748333 is about 306.3403627281.

The spelling of 28748333 in words is "twenty-eight million, seven hundred forty-eight thousand, three hundred thirty-three".