28296019 has 2 divisors, whose sum is σ = 28296020. Its totient is φ = 28296018.

The previous prime is 28295989. The next prime is 28296029. The reversal of 28296019 is 91069282.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28296019 is a prime.

It is a super-2 number, since 2×28296019² = 1601329382496722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28296029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14148009 + 14148010.

It is an arithmetic number, because the mean of its divisors is an integer number (14148010).

Almost surely, 2^28296019 is an apocalyptic number.

28296019 is a deficient number, since it is larger than the sum of its proper divisors (1).

28296019 is an equidigital number, since it uses as much as digits as its factorization.

28296019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 28296019 is about 5319.4002481483. The cubic root of 28296019 is about 304.7252528929.

The spelling of 28296019 in words is "twenty-eight million, two hundred ninety-six thousand, nineteen".