863486 has 8 divisors (see below), whose sum is σ = 1394904. Its totient is φ = 398520.

The previous prime is 863479. The next prime is 863491. The reversal of 863486 is 684368.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

863486 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16580 + ... + 16631.

It is an arithmetic number, because the mean of its divisors is an integer number (174363).

2⁸⁶³⁴⁸⁶ is an apocalyptic number.

863486 is a deficient number, since it is larger than the sum of its proper divisors (531418).

863486 is a wasteful number, since it uses less digits than its factorization.

863486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33226.

The product of its digits is 27648, while the sum is 35.

The square root of 863486 is about 929.2394739786. The cubic root of 863486 is about 95.2251722386.

The spelling of 863486 in words is "eight hundred sixty-three thousand, four hundred eighty-six".