858755461 has 2 divisors, whose sum is σ = 858755462. Its totient is φ = 858755460.

The previous prime is 858755423. The next prime is 858755473. The reversal of 858755461 is 164557858.

858755461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 668481025 + 190274436 = 25855^2 + 13794^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-858755461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (858705461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429377730 + 429377731.

It is an arithmetic number, because the mean of its divisors is an integer number (429377731).

Almost surely, 2^858755461 is an apocalyptic number.

It is an amenable number.

858755461 is a deficient number, since it is larger than the sum of its proper divisors (1).

858755461 is an equidigital number, since it uses as much as digits as its factorization.

858755461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344000, while the sum is 49.

The square root of 858755461 is about 29304.5297010548. The cubic root of 858755461 is about 950.5095921580.

The spelling of 858755461 in words is "eight hundred fifty-eight million, seven hundred fifty-five thousand, four hundred sixty-one".