28393259 has 2 divisors, whose sum is σ = 28393260. Its totient is φ = 28393258.

The previous prime is 28393249. The next prime is 28393271. The reversal of 28393259 is 95239382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28393259 - 2⁸ = 28393003 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (28393229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14196629 + 14196630.

It is an arithmetic number, because the mean of its divisors is an integer number (14196630).

Almost surely, 2^28393259 is an apocalyptic number.

28393259 is a deficient number, since it is larger than the sum of its proper divisors (1).

28393259 is an equidigital number, since it uses as much as digits as its factorization.

28393259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 41.

The square root of 28393259 is about 5328.5325372001. The cubic root of 28393259 is about 305.0739191973.

The spelling of 28393259 in words is "twenty-eight million, three hundred ninety-three thousand, two hundred fifty-nine".