28083193 has 2 divisors, whose sum is σ = 28083194. Its totient is φ = 28083192.

The previous prime is 28083191. The next prime is 28083199. The reversal of 28083193 is 39138082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25674489 + 2408704 = 5067^2 + 1552^2 .

It is a cyclic number.

It is not a de Polignac number, because 28083193 - 2¹ = 28083191 is a prime.

Together with 28083191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (28083191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14041596 + 14041597.

It is an arithmetic number, because the mean of its divisors is an integer number (14041597).

Almost surely, 2^28083193 is an apocalyptic number.

It is an amenable number.

28083193 is a deficient number, since it is larger than the sum of its proper divisors (1).

28083193 is an equidigital number, since it uses as much as digits as its factorization.

28083193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 28083193 is about 5299.3577912800. The cubic root of 28083193 is about 303.9593414287.

The spelling of 28083193 in words is "twenty-eight million, eighty-three thousand, one hundred ninety-three".