3001421 has 2 divisors, whose sum is σ = 3001422. Its totient is φ = 3001420.

The previous prime is 3001387. The next prime is 3001423. The reversal of 3001421 is 1241003.

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., 2788900 + 212521 = 1670^2 + 461^2 .

It is an emirp because it is prime and its reverse (1241003) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3001421 is a prime.

Together with 3001423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3001423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1500710 + 1500711.

It is an arithmetic number, because the mean of its divisors is an integer number (1500711).

Almost surely, 2^3001421 is an apocalyptic number.

It is an amenable number.

3001421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3001421 is an equidigital number, since it uses as much as digits as its factorization.

3001421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 3001421 is about 1732.4609663712. The cubic root of 3001421 is about 144.2477249545.

Adding to 3001421 its reverse (1241003), we get a palindrome (4242424).

The spelling of 3001421 in words is "three million, one thousand, four hundred twenty-one".