9873631 has 2 divisors, whose sum is σ = 9873632. Its totient is φ = 9873630.

The previous prime is 9873623. The next prime is 9873637. The reversal of 9873631 is 1363789.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9873631 - 2³ = 9873623 is a prime.

It is a super-2 number, since 2×9873631² = 194977178248322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9873637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4936815 + 4936816.

It is an arithmetic number, because the mean of its divisors is an integer number (4936816).

Almost surely, 2^9873631 is an apocalyptic number.

9873631 is a deficient number, since it is larger than the sum of its proper divisors (1).

9873631 is an equidigital number, since it uses as much as digits as its factorization.

9873631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 9873631 is about 3142.2334413598. The cubic root of 9873631 is about 214.5321066981.

The spelling of 9873631 in words is "nine million, eight hundred seventy-three thousand, six hundred thirty-one".