28895047 has 2 divisors, whose sum is σ = 28895048. Its totient is φ = 28895046.

The previous prime is 28895033. The next prime is 28895051. The reversal of 28895047 is 74059882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28895047 - 2¹¹ = 28892999 is a prime.

It is a super-2 number, since 2×28895047² = 1669847482264418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28894994 and 28895012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28895077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14447523 + 14447524.

It is an arithmetic number, because the mean of its divisors is an integer number (14447524).

Almost surely, 2^28895047 is an apocalyptic number.

28895047 is a deficient number, since it is larger than the sum of its proper divisors (1).

28895047 is an equidigital number, since it uses as much as digits as its factorization.

28895047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 28895047 is about 5375.4113330981. The cubic root of 28895047 is about 306.8606036720.

The spelling of 28895047 in words is "twenty-eight million, eight hundred ninety-five thousand, forty-seven".