861833741 has 2 divisors, whose sum is σ = 861833742. Its totient is φ = 861833740.

The previous prime is 861833729. The next prime is 861833743. The reversal of 861833741 is 147338168.

861833741 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., 786578116 + 75255625 = 28046^2 + 8675^2 .

It is a cyclic number.

It is not a de Polignac number, because 861833741 - 2¹⁰ = 861832717 is a prime.

It is a Sophie Germain prime.

Together with 861833743, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (861833743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 430916870 + 430916871.

It is an arithmetic number, because the mean of its divisors is an integer number (430916871).

Almost surely, 2^861833741 is an apocalyptic number.

It is an amenable number.

861833741 is a deficient number, since it is larger than the sum of its proper divisors (1).

861833741 is an equidigital number, since it uses as much as digits as its factorization.

861833741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 41.

The square root of 861833741 is about 29357.0049732598. The cubic root of 861833741 is about 951.6439645767.

The spelling of 861833741 in words is "eight hundred sixty-one million, eight hundred thirty-three thousand, seven hundred forty-one".