9430921 has 2 divisors, whose sum is σ = 9430922. Its totient is φ = 9430920.

The previous prime is 9430919. The next prime is 9430931. The reversal of 9430921 is 1290349.

It is a happy number.

9430921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8732025 + 698896 = 2955^2 + 836^2 .

It is a cyclic number.

It is not a de Polignac number, because 9430921 - 2¹ = 9430919 is a prime.

Together with 9430919, it forms a pair of twin primes.

It is a Chen prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 9430921.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9430931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4715460 + 4715461.

It is an arithmetic number, because the mean of its divisors is an integer number (4715461).

Almost surely, 2^9430921 is an apocalyptic number.

It is an amenable number.

9430921 is a deficient number, since it is larger than the sum of its proper divisors (1).

9430921 is an equidigital number, since it uses as much as digits as its factorization.

9430921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 9430921 is about 3070.9804623280. The cubic root of 9430921 is about 211.2765852423.

The spelling of 9430921 in words is "nine million, four hundred thirty thousand, nine hundred twenty-one".