3424021421 has 2 divisors, whose sum is σ = 3424021422. Its totient is φ = 3424021420.

The previous prime is 3424021417. The next prime is 3424021441. The reversal of 3424021421 is 1241204243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3423888196 + 133225 = 58514^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 3424021421 - 2² = 3424021417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3424021441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1712010710 + 1712010711.

It is an arithmetic number, because the mean of its divisors is an integer number (1712010711).

Almost surely, 2^3424021421 is an apocalyptic number.

It is an amenable number.

3424021421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3424021421 is an equidigital number, since it uses as much as digits as its factorization.

3424021421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 3424021421 is about 58515.1383917017. The cubic root of 3424021421 is about 1507.2275518041.

Adding to 3424021421 its reverse (1241204243), we get a palindrome (4665225664).

The spelling of 3424021421 in words is "three billion, four hundred twenty-four million, twenty-one thousand, four hundred twenty-one".