6297935921 has 2 divisors, whose sum is σ = 6297935922. Its totient is φ = 6297935920.

The previous prime is 6297935879. The next prime is 6297935929. The reversal of 6297935921 is 1295397926.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6222054400 + 75881521 = 78880^2 + 8711^2 .

It is a cyclic number.

It is not a de Polignac number, because 6297935921 - 2³⁰ = 5224194097 is a prime.

It is not a weakly prime, because it can be changed into another prime (6297935929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3148967960 + 3148967961.

It is an arithmetic number, because the mean of its divisors is an integer number (3148967961).

Almost surely, 2^6297935921 is an apocalyptic number.

It is an amenable number.

6297935921 is a deficient number, since it is larger than the sum of its proper divisors (1).

6297935921 is an equidigital number, since it uses as much as digits as its factorization.

6297935921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1837080, while the sum is 53.

The square root of 6297935921 is about 79359.5357912331. The cubic root of 6297935921 is about 1846.7130258787.

The spelling of 6297935921 in words is "six billion, two hundred ninety-seven million, nine hundred thirty-five thousand, nine hundred twenty-one".