838297147 has 2 divisors, whose sum is σ = 838297148. Its totient is φ = 838297146.

The previous prime is 838297139. The next prime is 838297247. The reversal of 838297147 is 741792838.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 838297147 - 2³ = 838297139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 838297147.

It is not a weakly prime, because it can be changed into another prime (838297127) 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, 419148573 + 419148574.

It is an arithmetic number, because the mean of its divisors is an integer number (419148574).

Almost surely, 2^838297147 is an apocalyptic number.

838297147 is a deficient number, since it is larger than the sum of its proper divisors (1).

838297147 is an equidigital number, since it uses as much as digits as its factorization.

838297147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 49.

The square root of 838297147 is about 28953.3615837609. The cubic root of 838297147 is about 942.9007822525.

The spelling of 838297147 in words is "eight hundred thirty-eight million, two hundred ninety-seven thousand, one hundred forty-seven".