28064999 has 2 divisors, whose sum is σ = 28065000. Its totient is φ = 28064998.

The previous prime is 28064989. The next prime is 28065029. The reversal of 28064999 is 99946082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28064999 - 2¹⁶ = 27999463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28064989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14032499 + 14032500.

It is an arithmetic number, because the mean of its divisors is an integer number (14032500).

Almost surely, 2^28064999 is an apocalyptic number.

28064999 is a deficient number, since it is larger than the sum of its proper divisors (1).

28064999 is an equidigital number, since it uses as much as digits as its factorization.

28064999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 28064999 is about 5297.6408900566. The cubic root of 28064999 is about 303.8936861337.

The spelling of 28064999 in words is "twenty-eight million, sixty-four thousand, nine hundred ninety-nine".