28118033 has 2 divisors, whose sum is σ = 28118034. Its totient is φ = 28118032.

The previous prime is 28118003. The next prime is 28118047. The reversal of 28118033 is 33081182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20539024 + 7579009 = 4532^2 + 2753^2 .

It is a cyclic number.

It is not a de Polignac number, because 28118033 - 2¹⁰ = 28117009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28117993 and 28118011.

It is not a weakly prime, because it can be changed into another prime (28118003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14059016 + 14059017.

It is an arithmetic number, because the mean of its divisors is an integer number (14059017).

Almost surely, 2^28118033 is an apocalyptic number.

It is an amenable number.

28118033 is a deficient number, since it is larger than the sum of its proper divisors (1).

28118033 is an equidigital number, since it uses as much as digits as its factorization.

28118033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 28118033 is about 5302.6439631565. The cubic root of 28118033 is about 304.0849867708.

The spelling of 28118033 in words is "twenty-eight million, one hundred eighteen thousand, thirty-three".