9442729 has 2 divisors, whose sum is σ = 9442730. Its totient is φ = 9442728.

The previous prime is 9442717. The next prime is 9442747. The reversal of 9442729 is 9272449.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6620329 + 2822400 = 2573^2 + 1680^2 .

It is a cyclic number.

It is not a de Polignac number, because 9442729 - 2¹¹ = 9440681 is a prime.

It is not a weakly prime, because it can be changed into another prime (9442709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4721364 + 4721365.

It is an arithmetic number, because the mean of its divisors is an integer number (4721365).

Almost surely, 2^9442729 is an apocalyptic number.

It is an amenable number.

9442729 is a deficient number, since it is larger than the sum of its proper divisors (1).

9442729 is an equidigital number, since it uses as much as digits as its factorization.

9442729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 9442729 is about 3072.9023739781. The cubic root of 9442729 is about 211.3647248650.

The spelling of 9442729 in words is "nine million, four hundred forty-two thousand, seven hundred twenty-nine".