984631 has 4 divisors (see below), whose sum is σ = 992512. Its totient is φ = 976752.

The previous prime is 984617. The next prime is 984667. The reversal of 984631 is 136489.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136489 = 41 ⋅3329.

It is a cyclic number.

It is not a de Polignac number, because 984631 - 2⁹ = 984119 is a prime.

It is a super-2 number, since 2×984631² = 1938996412322, 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 = 984593 and 984602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (984611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3750 + ... + 4003.

It is an arithmetic number, because the mean of its divisors is an integer number (248128).

2⁹⁸⁴⁶³¹ is an apocalyptic number.

984631 is a deficient number, since it is larger than the sum of its proper divisors (7881).

984631 is a wasteful number, since it uses less digits than its factorization.

984631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7880.

The product of its digits is 5184, while the sum is 31.

The square root of 984631 is about 992.2857451359. The cubic root of 984631 is about 99.4850528459.

The spelling of 984631 in words is "nine hundred eighty-four thousand, six hundred thirty-one".