9994427 has 2 divisors, whose sum is σ = 9994428. Its totient is φ = 9994426.

The previous prime is 9994421. The next prime is 9994441. The reversal of 9994427 is 7244999.

It is a weak prime.

It is an emirp because it is prime and its reverse (7244999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9994427 - 2⁶ = 9994363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9994421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4997213 + 4997214.

It is an arithmetic number, because the mean of its divisors is an integer number (4997214).

Almost surely, 2^9994427 is an apocalyptic number.

9994427 is a deficient number, since it is larger than the sum of its proper divisors (1).

9994427 is an equidigital number, since it uses as much as digits as its factorization.

9994427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 9994427 is about 3161.3963686953. The cubic root of 9994427 is about 215.4034393510.

The spelling of 9994427 in words is "nine million, nine hundred ninety-four thousand, four hundred twenty-seven".