862986 has 8 divisors (see below), whose sum is σ = 1725984. Its totient is φ = 287660.

The previous prime is 862973. The next prime is 862987. The reversal of 862986 is 689268.

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

862986 is an admirable number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (862987) by changing a digit.

862986 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 in 3 ways as a sum of consecutive naturals, for example, 71910 + ... + 71921.

It is an arithmetic number, because the mean of its divisors is an integer number (215748).

2⁸⁶²⁹⁸⁶ is an apocalyptic number.

862986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

862986 is a wasteful number, since it uses less digits than its factorization.

862986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143836.

The product of its digits is 41472, while the sum is 39.

The square root of 862986 is about 928.9703978061. The cubic root of 862986 is about 95.2067887021.

The spelling of 862986 in words is "eight hundred sixty-two thousand, nine hundred eighty-six".