9382421 has 2 divisors, whose sum is σ = 9382422. Its totient is φ = 9382420.

The previous prime is 9382411. The next prime is 9382427. The reversal of 9382421 is 1242839.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8059921 + 1322500 = 2839^2 + 1150^2 .

It is a cyclic number.

It is not a de Polignac number, because 9382421 - 2¹⁰ = 9381397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9382427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4691210 + 4691211.

It is an arithmetic number, because the mean of its divisors is an integer number (4691211).

Almost surely, 2^9382421 is an apocalyptic number.

It is an amenable number.

9382421 is a deficient number, since it is larger than the sum of its proper divisors (1).

9382421 is an equidigital number, since it uses as much as digits as its factorization.

9382421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 9382421 is about 3063.0737829834. The cubic root of 9382421 is about 210.9137882189.

The spelling of 9382421 in words is "nine million, three hundred eighty-two thousand, four hundred twenty-one".