28938383 has 2 divisors, whose sum is σ = 28938384. Its totient is φ = 28938382.

The previous prime is 28938313. The next prime is 28938401. The reversal of 28938383 is 38383982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28938383 - 2¹² = 28934287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28938313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14469191 + 14469192.

It is an arithmetic number, because the mean of its divisors is an integer number (14469192).

Almost surely, 2^28938383 is an apocalyptic number.

28938383 is a deficient number, since it is larger than the sum of its proper divisors (1).

28938383 is an equidigital number, since it uses as much as digits as its factorization.

28938383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 44.

The square root of 28938383 is about 5379.4407701916. The cubic root of 28938383 is about 307.0139340866.

The spelling of 28938383 in words is "twenty-eight million, nine hundred thirty-eight thousand, three hundred eighty-three".