28942033 has 2 divisors, whose sum is σ = 28942034. Its totient is φ = 28942032.

The previous prime is 28942031. The next prime is 28942063. The reversal of 28942033 is 33024982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28547649 + 394384 = 5343^2 + 628^2 .

It is a cyclic number.

It is not a de Polignac number, because 28942033 - 2¹ = 28942031 is a prime.

Together with 28942031, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 28941986 and 28942004.

It is not a weakly prime, because it can be changed into another prime (28942031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14471016 + 14471017.

It is an arithmetic number, because the mean of its divisors is an integer number (14471017).

Almost surely, 2^28942033 is an apocalyptic number.

It is an amenable number.

28942033 is a deficient number, since it is larger than the sum of its proper divisors (1).

28942033 is an equidigital number, since it uses as much as digits as its factorization.

28942033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 28942033 is about 5379.7800140898. The cubic root of 28942033 is about 307.0268414393.

The spelling of 28942033 in words is "twenty-eight million, nine hundred forty-two thousand, thirty-three".