983631 has 16 divisors (see below), whose sum is σ = 1467648. Its totient is φ = 580800.

The previous prime is 983617. The next prime is 983659. The reversal of 983631 is 136389.

983631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 983631 - 2⁹ = 983119 is a prime.

It is a super-2 number, since 2×983631² = 1935059888322, which contains 22 as substring.

983631 is a lucky number.

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 983631.

It is not an unprimeable number, because it can be changed into a prime (983131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990 + ... + 1716.

It is an arithmetic number, because the mean of its divisors is an integer number (91728).

2⁹⁸³⁶³¹ is an apocalyptic number.

983631 is a deficient number, since it is larger than the sum of its proper divisors (484017).

983631 is a wasteful number, since it uses less digits than its factorization.

983631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782.

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

The square root of 983631 is about 991.7817300193. The cubic root of 983631 is about 99.4513621363.

The spelling of 983631 in words is "nine hundred eighty-three thousand, six hundred thirty-one".