6870000391 has 2 divisors, whose sum is σ = 6870000392. Its totient is φ = 6870000390.

The previous prime is 6870000359. The next prime is 6870000421. The reversal of 6870000391 is 1930000786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6870000391 - 2⁵ = 6870000359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6870000091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3435000195 + 3435000196.

It is an arithmetic number, because the mean of its divisors is an integer number (3435000196).

Almost surely, 2^6870000391 is an apocalyptic number.

6870000391 is a deficient number, since it is larger than the sum of its proper divisors (1).

6870000391 is an equidigital number, since it uses as much as digits as its factorization.

6870000391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 6870000391 is about 82885.4654990849. The cubic root of 6870000391 is about 1901.0151907169.

The spelling of 6870000391 in words is "six billion, eight hundred seventy million, three hundred ninety-one", and thus it is an aban number.