6308891 has 2 divisors, whose sum is σ = 6308892. Its totient is φ = 6308890.

The previous prime is 6308881. The next prime is 6308947. The reversal of 6308891 is 1988036.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6308891 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6308801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3154445 + 3154446.

It is an arithmetic number, because the mean of its divisors is an integer number (3154446).

Almost surely, 2^6308891 is an apocalyptic number.

6308891 is a deficient number, since it is larger than the sum of its proper divisors (1).

6308891 is an equidigital number, since it uses as much as digits as its factorization.

6308891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 6308891 is about 2511.7505847516. The cubic root of 6308891 is about 184.7783173745.

The spelling of 6308891 in words is "six million, three hundred eight thousand, eight hundred ninety-one".