28100833 has 2 divisors, whose sum is σ = 28100834. Its totient is φ = 28100832.

The previous prime is 28100789. The next prime is 28100837. The reversal of 28100833 is 33800182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16184529 + 11916304 = 4023^2 + 3452^2 .

It is a cyclic number.

It is not a de Polignac number, because 28100833 - 2¹⁷ = 27969761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28100798 and 28100807.

It is not a weakly prime, because it can be changed into another prime (28100837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14050416 + 14050417.

It is an arithmetic number, because the mean of its divisors is an integer number (14050417).

Almost surely, 2^28100833 is an apocalyptic number.

It is an amenable number.

28100833 is a deficient number, since it is larger than the sum of its proper divisors (1).

28100833 is an equidigital number, since it uses as much as digits as its factorization.

28100833 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 25.

The square root of 28100833 is about 5301.0218826185. The cubic root of 28100833 is about 304.0229704769.

The spelling of 28100833 in words is "twenty-eight million, one hundred thousand, eight hundred thirty-three".