9689643 has 12 divisors (see below), whose sum is σ = 14819688. Its totient is φ = 6079680.

The previous prime is 9689633. The next prime is 9689651. The reversal of 9689643 is 3469869.

It is not a de Polignac number, because 9689643 - 2⁸ = 9689387 is a prime.

9689643 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9689623) 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 11 ways as a sum of consecutive naturals, for example, 31513 + ... + 31818.

It is an arithmetic number, because the mean of its divisors is an integer number (1234974).

Almost surely, 2^9689643 is an apocalyptic number.

9689643 is a deficient number, since it is larger than the sum of its proper divisors (5130045).

9689643 is a wasteful number, since it uses less digits than its factorization.

9689643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63354 (or 63351 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 9689643 is about 3112.8191402650. The cubic root of 9689643 is about 213.1911924783.

The spelling of 9689643 in words is "nine million, six hundred eighty-nine thousand, six hundred forty-three".