28194707 has 2 divisors, whose sum is σ = 28194708. Its totient is φ = 28194706.

The previous prime is 28194701. The next prime is 28194763. The reversal of 28194707 is 70749182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28194707 - 2⁸ = 28194451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28194701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14097353 + 14097354.

It is an arithmetic number, because the mean of its divisors is an integer number (14097354).

Almost surely, 2^28194707 is an apocalyptic number.

28194707 is a deficient number, since it is larger than the sum of its proper divisors (1).

28194707 is an equidigital number, since it uses as much as digits as its factorization.

28194707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 28194707 is about 5309.8688307716. The cubic root of 28194707 is about 304.3611351970.

The spelling of 28194707 in words is "twenty-eight million, one hundred ninety-four thousand, seven hundred seven".