838651067 has 2 divisors, whose sum is σ = 838651068. Its totient is φ = 838651066.

The previous prime is 838651049. The next prime is 838651069. The reversal of 838651067 is 760156838.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 838651067 - 2¹⁴ = 838634683 is a prime.

It is a super-2 number, since 2×838651067² = 1406671224360476978, which contains 22 as substring.

Together with 838651069, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (838651069) 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, 419325533 + 419325534.

It is an arithmetic number, because the mean of its divisors is an integer number (419325534).

Almost surely, 2^838651067 is an apocalyptic number.

838651067 is a deficient number, since it is larger than the sum of its proper divisors (1).

838651067 is an equidigital number, since it uses as much as digits as its factorization.

838651067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 838651067 is about 28959.4728370528. The cubic root of 838651067 is about 943.0334577578.

The spelling of 838651067 in words is "eight hundred thirty-eight million, six hundred fifty-one thousand, sixty-seven".