9385421 has 2 divisors, whose sum is σ = 9385422. Its totient is φ = 9385420.

The previous prime is 9385417. The next prime is 9385469. The reversal of 9385421 is 1245839.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8916196 + 469225 = 2986^2 + 685^2 .

It is a cyclic number.

It is not a de Polignac number, because 9385421 - 2² = 9385417 is a prime.

It is a super-2 number, since 2×9385421² = 176172254694482, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9385471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4692710 + 4692711.

It is an arithmetic number, because the mean of its divisors is an integer number (4692711).

Almost surely, 2^9385421 is an apocalyptic number.

It is an amenable number.

9385421 is a deficient number, since it is larger than the sum of its proper divisors (1).

9385421 is an equidigital number, since it uses as much as digits as its factorization.

9385421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 9385421 is about 3063.5634480128. The cubic root of 9385421 is about 210.9362654999.

The spelling of 9385421 in words is "nine million, three hundred eighty-five thousand, four hundred twenty-one".