6348013421 has 2 divisors, whose sum is σ = 6348013422. Its totient is φ = 6348013420.

The previous prime is 6348013381. The next prime is 6348013429. The reversal of 6348013421 is 1243108436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5626500100 + 721513321 = 75010^2 + 26861^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6348013421 is a prime.

It is a super-2 number, since 2×6348013421² = 80594548786392246482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6348013429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3174006710 + 3174006711.

It is an arithmetic number, because the mean of its divisors is an integer number (3174006711).

Almost surely, 2^6348013421 is an apocalyptic number.

It is an amenable number.

6348013421 is a deficient number, since it is larger than the sum of its proper divisors (1).

6348013421 is an equidigital number, since it uses as much as digits as its factorization.

6348013421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 6348013421 is about 79674.4213722321. The cubic root of 6348013421 is about 1851.5947700683.

The spelling of 6348013421 in words is "six billion, three hundred forty-eight million, thirteen thousand, four hundred twenty-one".