9831641 has 2 divisors, whose sum is σ = 9831642. Its totient is φ = 9831640.

The previous prime is 9831637. The next prime is 9831707. The reversal of 9831641 is 1461389.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8976016 + 855625 = 2996^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 9831641 - 2² = 9831637 is a prime.

It is a super-2 number, since 2×9831641² = 193322329505762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9831598 and 9831607.

It is not a weakly prime, because it can be changed into another prime (9833641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4915820 + 4915821.

It is an arithmetic number, because the mean of its divisors is an integer number (4915821).

Almost surely, 2^9831641 is an apocalyptic number.

It is an amenable number.

9831641 is a deficient number, since it is larger than the sum of its proper divisors (1).

9831641 is an equidigital number, since it uses as much as digits as its factorization.

9831641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The square root of 9831641 is about 3135.5447692546. The cubic root of 9831641 is about 214.2275580382.

The spelling of 9831641 in words is "nine million, eight hundred thirty-one thousand, six hundred forty-one".