857000741 has 2 divisors, whose sum is σ = 857000742. Its totient is φ = 857000740.

The previous prime is 857000717. The next prime is 857000789. The reversal of 857000741 is 147000758.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 485320900 + 371679841 = 22030^2 + 19279^2 .

It is a cyclic number.

It is not a de Polignac number, because 857000741 - 2¹⁴ = 856984357 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 857000698 and 857000707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (857000341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428500370 + 428500371.

It is an arithmetic number, because the mean of its divisors is an integer number (428500371).

Almost surely, 2^857000741 is an apocalyptic number.

It is an amenable number.

857000741 is a deficient number, since it is larger than the sum of its proper divisors (1).

857000741 is an equidigital number, since it uses as much as digits as its factorization.

857000741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 857000741 is about 29274.5749926451. The cubic root of 857000741 is about 949.8617494109.

The spelling of 857000741 in words is "eight hundred fifty-seven million, seven hundred forty-one", and thus it is an aban number.