7434675421 has 2 divisors, whose sum is σ = 7434675422. Its totient is φ = 7434675420.

The previous prime is 7434675419. The next prime is 7434675439. The reversal of 7434675421 is 1245764347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5011082521 + 2423592900 = 70789^2 + 49230^2 .

It is a cyclic number.

It is not a de Polignac number, because 7434675421 - 2¹ = 7434675419 is a prime.

Together with 7434675419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7434675461) 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, 3717337710 + 3717337711.

It is an arithmetic number, because the mean of its divisors is an integer number (3717337711).

Almost surely, 2^7434675421 is an apocalyptic number.

It is an amenable number.

7434675421 is a deficient number, since it is larger than the sum of its proper divisors (1).

7434675421 is an equidigital number, since it uses as much as digits as its factorization.

7434675421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 43.

The square root of 7434675421 is about 86224.5639072764. The cubic root of 7434675421 is about 1951.7341943737.

The spelling of 7434675421 in words is "seven billion, four hundred thirty-four million, six hundred seventy-five thousand, four hundred twenty-one".