28357103 has 2 divisors, whose sum is σ = 28357104. Its totient is φ = 28357102.

The previous prime is 28357073. The next prime is 28357127. The reversal of 28357103 is 30175382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28357103 - 2¹² = 28353007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28357193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14178551 + 14178552.

It is an arithmetic number, because the mean of its divisors is an integer number (14178552).

Almost surely, 2^28357103 is an apocalyptic number.

28357103 is a deficient number, since it is larger than the sum of its proper divisors (1).

28357103 is an equidigital number, since it uses as much as digits as its factorization.

28357103 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 28357103 is about 5325.1387775343. The cubic root of 28357103 is about 304.9443703971.

The spelling of 28357103 in words is "twenty-eight million, three hundred fifty-seven thousand, one hundred three".