8344000387 has 2 divisors, whose sum is σ = 8344000388. Its totient is φ = 8344000386.

The previous prime is 8344000361. The next prime is 8344000409. The reversal of 8344000387 is 7830004438.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8344000387 is a prime.

It is a super-2 number, since 2×8344000387² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8344004387) 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, 4172000193 + 4172000194.

It is an arithmetic number, because the mean of its divisors is an integer number (4172000194).

Almost surely, 2^8344000387 is an apocalyptic number.

8344000387 is a deficient number, since it is larger than the sum of its proper divisors (1).

8344000387 is an equidigital number, since it uses as much as digits as its factorization.

8344000387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 8344000387 is about 91345.5000916849. The cubic root of 8344000387 is about 2028.2653520176.

The spelling of 8344000387 in words is "eight billion, three hundred forty-four million, three hundred eighty-seven", and thus it is an aban number.