28384667 has 2 divisors, whose sum is σ = 28384668. Its totient is φ = 28384666.

The previous prime is 28384633. The next prime is 28384673. The reversal of 28384667 is 76648382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28384667 - 2¹⁰ = 28383643 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28381667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14192333 + 14192334.

It is an arithmetic number, because the mean of its divisors is an integer number (14192334).

Almost surely, 2^28384667 is an apocalyptic number.

28384667 is a deficient number, since it is larger than the sum of its proper divisors (1).

28384667 is an equidigital number, since it uses as much as digits as its factorization.

28384667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 44.

The square root of 28384667 is about 5327.7262504750. The cubic root of 28384667 is about 305.0431435878.

The spelling of 28384667 in words is "twenty-eight million, three hundred eighty-four thousand, six hundred sixty-seven".