857867341 has 2 divisors, whose sum is σ = 857867342. Its totient is φ = 857867340.

The previous prime is 857867323. The next prime is 857867377. The reversal of 857867341 is 143768758.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 845937225 + 11930116 = 29085^2 + 3454^2 .

It is a cyclic number.

It is not a de Polignac number, because 857867341 - 2²¹ = 855770189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (857867441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428933670 + 428933671.

It is an arithmetic number, because the mean of its divisors is an integer number (428933671).

Almost surely, 2^857867341 is an apocalyptic number.

It is an amenable number.

857867341 is a deficient number, since it is larger than the sum of its proper divisors (1).

857867341 is an equidigital number, since it uses as much as digits as its factorization.

857867341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 49.

The square root of 857867341 is about 29289.3724924246. The cubic root of 857867341 is about 950.1818086017.

The spelling of 857867341 in words is "eight hundred fifty-seven million, eight hundred sixty-seven thousand, three hundred forty-one".