3452431421 has 2 divisors, whose sum is σ = 3452431422. Its totient is φ = 3452431420.

The previous prime is 3452431391. The next prime is 3452431439. The reversal of 3452431421 is 1241342543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2044305796 + 1408125625 = 45214^2 + 37525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3452431421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3452431441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1726215710 + 1726215711.

It is an arithmetic number, because the mean of its divisors is an integer number (1726215711).

Almost surely, 2^3452431421 is an apocalyptic number.

It is an amenable number.

3452431421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3452431421 is an equidigital number, since it uses as much as digits as its factorization.

3452431421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 29.

The square root of 3452431421 is about 58757.3946069769. The cubic root of 3452431421 is about 1511.3846954967.

Adding to 3452431421 its reverse (1241342543), we get a palindrome (4693773964).

The spelling of 3452431421 in words is "three billion, four hundred fifty-two million, four hundred thirty-one thousand, four hundred twenty-one".