863686941 has 16 divisors (see below), whose sum is σ = 1244414976. Its totient is φ = 529678656.

The previous prime is 863686927. The next prime is 863686969. The reversal of 863686941 is 149686368.

It is not a de Polignac number, because 863686941 - 2⁵ = 863686909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863686981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26365 + ... + 49218.

It is an arithmetic number, because the mean of its divisors is an integer number (77775936).

Almost surely, 2^863686941 is an apocalyptic number.

It is an amenable number.

863686941 is a deficient number, since it is larger than the sum of its proper divisors (380728035).

863686941 is a wasteful number, since it uses less digits than its factorization.

863686941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75892.

The product of its digits is 1492992, while the sum is 51.

The square root of 863686941 is about 29388.5511891961. The cubic root of 863686941 is about 952.3255825191.

The spelling of 863686941 in words is "eight hundred sixty-three million, six hundred eighty-six thousand, nine hundred forty-one".