863936 has 14 divisors (see below), whose sum is σ = 1714500. Its totient is φ = 431936.

The previous prime is 863921. The next prime is 863959. The reversal of 863936 is 639368.

It is a junction number, because it is equal to n+sod(n) for n = 863896 and 863905.

It is an unprimeable number.

863936 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6686 + ... + 6813.

2⁸⁶³⁹³⁶ is an apocalyptic number.

It is an amenable number.

863936 is a deficient number, since it is larger than the sum of its proper divisors (850564).

863936 is a wasteful number, since it uses less digits than its factorization.

863936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13511 (or 13501 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 863936 is about 929.4815759336. The cubic root of 863936 is about 95.2417113548.

The spelling of 863936 in words is "eight hundred sixty-three thousand, nine hundred thirty-six".