28607 has 2 divisors, whose sum is σ = 28608. Its totient is φ = 28606.

The previous prime is 28603. The next prime is 28619. The reversal of 28607 is 70682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28607 - 2² = 28603 is a prime.

It is a plaindrome in base 12.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28607.

It is not a weakly prime, because it can be changed into another prime (28603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14303 + 14304.

It is an arithmetic number, because the mean of its divisors is an integer number (14304).

2²⁸⁶⁰⁷ is an apocalyptic number.

28607 is a deficient number, since it is larger than the sum of its proper divisors (1).

28607 is an equidigital number, since it uses as much as digits as its factorization.

28607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 28607 is about 169.1360399205. The cubic root of 28607 is about 30.5837526062.

The spelling of 28607 in words is "twenty-eight thousand, six hundred seven".