863761841 has 2 divisors, whose sum is σ = 863761842. Its totient is φ = 863761840.

The previous prime is 863761819. The next prime is 863761853. The reversal of 863761841 is 148167368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 818818225 + 44943616 = 28615^2 + 6704^2 .

It is a cyclic number.

It is not a de Polignac number, because 863761841 - 2⁶ = 863761777 is a prime.

It is a super-3 number, since 3×863761841³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 863761792 and 863761801.

It is not a weakly prime, because it can be changed into another prime (863761861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431880920 + 431880921.

It is an arithmetic number, because the mean of its divisors is an integer number (431880921).

Almost surely, 2^863761841 is an apocalyptic number.

It is an amenable number.

863761841 is a deficient number, since it is larger than the sum of its proper divisors (1).

863761841 is an equidigital number, since it uses as much as digits as its factorization.

863761841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The square root of 863761841 is about 29389.8254673280. The cubic root of 863761841 is about 952.3531106742.

The spelling of 863761841 in words is "eight hundred sixty-three million, seven hundred sixty-one thousand, eight hundred forty-one".