28105373 has 2 divisors, whose sum is σ = 28105374. Its totient is φ = 28105372.

The previous prime is 28105349. The next prime is 28105391. The reversal of 28105373 is 37350182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14760964 + 13344409 = 3842^2 + 3653^2 .

It is a cyclic number.

It is not a de Polignac number, because 28105373 - 2⁸ = 28105117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28105303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14052686 + 14052687.

It is an arithmetic number, because the mean of its divisors is an integer number (14052687).

Almost surely, 2^28105373 is an apocalyptic number.

It is an amenable number.

28105373 is a deficient number, since it is larger than the sum of its proper divisors (1).

28105373 is an equidigital number, since it uses as much as digits as its factorization.

28105373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 28105373 is about 5301.4500846467. The cubic root of 28105373 is about 304.0393423517.

The spelling of 28105373 in words is "twenty-eight million, one hundred five thousand, three hundred seventy-three".