986231 has 4 divisors (see below), whose sum is σ = 993000. Its totient is φ = 979464.

The previous prime is 986213. The next prime is 986239. The reversal of 986231 is 132689.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-986231 is a prime.

It is a super-2 number, since 2×986231² = 1945303170722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 986194 and 986203.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 986231.

It is not an unprimeable number, because it can be changed into a prime (986239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3161 + ... + 3458.

It is an arithmetic number, because the mean of its divisors is an integer number (248250).

2⁹⁸⁶²³¹ is an apocalyptic number.

986231 is a deficient number, since it is larger than the sum of its proper divisors (6769).

986231 is a wasteful number, since it uses less digits than its factorization.

986231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6768.

The product of its digits is 2592, while the sum is 29.

The square root of 986231 is about 993.0916372621. The cubic root of 986231 is about 99.5389105663.

The spelling of 986231 in words is "nine hundred eighty-six thousand, two hundred thirty-one".