28453433 has 2 divisors, whose sum is σ = 28453434. Its totient is φ = 28453432.

The previous prime is 28453423. The next prime is 28453459. The reversal of 28453433 is 33435482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28440889 + 12544 = 5333^2 + 112^2 .

It is a cyclic number.

It is not a de Polignac number, because 28453433 - 2⁸ = 28453177 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28453433.

It is not a weakly prime, because it can be changed into another prime (28453423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14226716 + 14226717.

It is an arithmetic number, because the mean of its divisors is an integer number (14226717).

Almost surely, 2^28453433 is an apocalyptic number.

It is an amenable number.

28453433 is a deficient number, since it is larger than the sum of its proper divisors (1).

28453433 is an equidigital number, since it uses as much as digits as its factorization.

28453433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 32.

The square root of 28453433 is about 5334.1759438549. The cubic root of 28453433 is about 305.2892821098.

The spelling of 28453433 in words is "twenty-eight million, four hundred fifty-three thousand, four hundred thirty-three".