9214729 has 2 divisors, whose sum is σ = 9214730. Its totient is φ = 9214728.

The previous prime is 9214703. The next prime is 9214747. The reversal of 9214729 is 9274129.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5992704 + 3222025 = 2448^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 9214729 - 2¹¹ = 9212681 is a prime.

It is a super-2 number, since 2×9214729² = 169822461086882, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 9214694 and 9214703.

It is not a weakly prime, because it can be changed into another prime (9214759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4607364 + 4607365.

It is an arithmetic number, because the mean of its divisors is an integer number (4607365).

Almost surely, 2^9214729 is an apocalyptic number.

It is an amenable number.

9214729 is a deficient number, since it is larger than the sum of its proper divisors (1).

9214729 is an equidigital number, since it uses as much as digits as its factorization.

9214729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 9214729 is about 3035.5772103506. The cubic root of 9214729 is about 209.6496728925.

The spelling of 9214729 in words is "nine million, two hundred fourteen thousand, seven hundred twenty-nine".