3009421 has 2 divisors, whose sum is σ = 3009422. Its totient is φ = 3009420.

The previous prime is 3009407. The next prime is 3009431. The reversal of 3009421 is 1249003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1999396 + 1010025 = 1414^2 + 1005^2 .

It is a cyclic number.

It is not a de Polignac number, because 3009421 - 2¹¹ = 3007373 is a prime.

It is a super-2 number, since 2×3009421² = 18113229510482, 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 (3009401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1504710 + 1504711.

It is an arithmetic number, because the mean of its divisors is an integer number (1504711).

Almost surely, 2^3009421 is an apocalyptic number.

It is an amenable number.

3009421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3009421 is an equidigital number, since it uses as much as digits as its factorization.

3009421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 3009421 is about 1734.7682842386. The cubic root of 3009421 is about 144.3757707523.

The spelling of 3009421 in words is "three million, nine thousand, four hundred twenty-one".