28194767 has 2 divisors, whose sum is σ = 28194768. Its totient is φ = 28194766.

The previous prime is 28194763. The next prime is 28194773. The reversal of 28194767 is 76749182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28194767 - 2² = 28194763 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 (28194763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14097383 + 14097384.

It is an arithmetic number, because the mean of its divisors is an integer number (14097384).

Almost surely, 2^28194767 is an apocalyptic number.

28194767 is a deficient number, since it is larger than the sum of its proper divisors (1).

28194767 is an equidigital number, since it uses as much as digits as its factorization.

28194767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 44.

The square root of 28194767 is about 5309.8744806257. The cubic root of 28194767 is about 304.3613510964.

The spelling of 28194767 in words is "twenty-eight million, one hundred ninety-four thousand, seven hundred sixty-seven".