9630891 has 24 divisors (see below), whose sum is σ = 15509520. Its totient is φ = 5723136.

The previous prime is 9630889. The next prime is 9630917. The reversal of 9630891 is 1980369.

It is not a de Polignac number, because 9630891 - 2¹ = 9630889 is a prime.

It is a super-2 number, since 2×9630891² = 185508122907762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9630821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1251 + ... + 4563.

It is an arithmetic number, because the mean of its divisors is an integer number (646230).

Almost surely, 2^9630891 is an apocalyptic number.

9630891 is a deficient number, since it is larger than the sum of its proper divisors (5878629).

9630891 is a wasteful number, since it uses less digits than its factorization.

9630891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355 (or 3352 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 9630891 is about 3103.3676868847. The cubic root of 9630891 is about 212.7594321611.

The spelling of 9630891 in words is "nine million, six hundred thirty thousand, eight hundred ninety-one".