6353730421 has 2 divisors, whose sum is σ = 6353730422. Its totient is φ = 6353730420.

The previous prime is 6353730413. The next prime is 6353730451. The reversal of 6353730421 is 1240373536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3862622500 + 2491107921 = 62150^2 + 49911^2 .

It is a cyclic number.

It is not a de Polignac number, because 6353730421 - 2³ = 6353730413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6353730401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3176865210 + 3176865211.

It is an arithmetic number, because the mean of its divisors is an integer number (3176865211).

Almost surely, 2^6353730421 is an apocalyptic number.

It is an amenable number.

6353730421 is a deficient number, since it is larger than the sum of its proper divisors (1).

6353730421 is an equidigital number, since it uses as much as digits as its factorization.

6353730421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 6353730421 is about 79710.2905589987. The cubic root of 6353730421 is about 1852.1504500063.

The spelling of 6353730421 in words is "six billion, three hundred fifty-three million, seven hundred thirty thousand, four hundred twenty-one".