9840667 has 2 divisors, whose sum is σ = 9840668. Its totient is φ = 9840666.

The previous prime is 9840661. The next prime is 9840707. The reversal of 9840667 is 7660489.

It is an a-pointer prime, because the next prime (9840707) can be obtained adding 9840667 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9840667 - 2³ = 9840659 is a prime.

9840667 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9840661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4920333 + 4920334.

It is an arithmetic number, because the mean of its divisors is an integer number (4920334).

Almost surely, 2^9840667 is an apocalyptic number.

9840667 is a deficient number, since it is larger than the sum of its proper divisors (1).

9840667 is an equidigital number, since it uses as much as digits as its factorization.

9840667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 9840667 is about 3136.9837423869. The cubic root of 9840667 is about 214.2930956399.

The spelling of 9840667 in words is "nine million, eight hundred forty thousand, six hundred sixty-seven".