28363019 has 2 divisors, whose sum is σ = 28363020. Its totient is φ = 28363018.

The previous prime is 28363001. The next prime is 28363031. The reversal of 28363019 is 91036382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28363019 - 2¹² = 28358923 is a prime.

It is a super-2 number, since 2×28363019² = 1608921693588722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28363039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14181509 + 14181510.

It is an arithmetic number, because the mean of its divisors is an integer number (14181510).

Almost surely, 2^28363019 is an apocalyptic number.

28363019 is a deficient number, since it is larger than the sum of its proper divisors (1).

28363019 is an equidigital number, since it uses as much as digits as its factorization.

28363019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 28363019 is about 5325.6942270468. The cubic root of 28363019 is about 304.9655752601.

The spelling of 28363019 in words is "twenty-eight million, three hundred sixty-three thousand, nineteen".