986331 has 4 divisors (see below), whose sum is σ = 1315112. Its totient is φ = 657552.

The previous prime is 986287. The next prime is 986333. The reversal of 986331 is 133689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133689 = 3 ⋅44563.

It is not a de Polignac number, because 986331 - 2⁶ = 986267 is a prime.

It is a super-2 number, since 2×986331² = 1945697683122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

986331 is a lucky number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (986333) 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, 164386 + ... + 164391.

It is an arithmetic number, because the mean of its divisors is an integer number (328778).

2⁹⁸⁶³³¹ is an apocalyptic number.

986331 is a deficient number, since it is larger than the sum of its proper divisors (328781).

986331 is a wasteful number, since it uses less digits than its factorization.

986331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328780.

The product of its digits is 3888, while the sum is 30.

The square root of 986331 is about 993.1419838069. The cubic root of 986331 is about 99.5422747392.

The spelling of 986331 in words is "nine hundred eighty-six thousand, three hundred thirty-one".