838004347 has 2 divisors, whose sum is σ = 838004348. Its totient is φ = 838004346.

The previous prime is 838004327. The next prime is 838004351. The reversal of 838004347 is 743400838.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838004347 is a prime.

It is not a weakly prime, because it can be changed into another prime (838004327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419002173 + 419002174.

It is an arithmetic number, because the mean of its divisors is an integer number (419002174).

Almost surely, 2^838004347 is an apocalyptic number.

838004347 is a deficient number, since it is larger than the sum of its proper divisors (1).

838004347 is an equidigital number, since it uses as much as digits as its factorization.

838004347 is an evil number, because the sum of its binary digits is even.

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

The square root of 838004347 is about 28948.3047344745. The cubic root of 838004347 is about 942.7909908341.

The spelling of 838004347 in words is "eight hundred thirty-eight million, four thousand, three hundred forty-seven".