28536019 has 2 divisors, whose sum is σ = 28536020. Its totient is φ = 28536018.

The previous prime is 28536007. The next prime is 28536049. The reversal of 28536019 is 91063582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28536019 - 2⁵ = 28535987 is a prime.

It is a super-2 number, since 2×28536019² = 1628608760736722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28536049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14268009 + 14268010.

It is an arithmetic number, because the mean of its divisors is an integer number (14268010).

Almost surely, 2^28536019 is an apocalyptic number.

28536019 is a deficient number, since it is larger than the sum of its proper divisors (1).

28536019 is an equidigital number, since it uses as much as digits as its factorization.

28536019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 28536019 is about 5341.9115492490. The cubic root of 28536019 is about 305.5843638636.

The spelling of 28536019 in words is "twenty-eight million, five hundred thirty-six thousand, nineteen".