9689427 has 24 divisors (see below), whose sum is σ = 15440880. Its totient is φ = 5806080.

The previous prime is 9689419. The next prime is 9689437. The reversal of 9689427 is 7249869.

It is a happy number.

It is not a de Polignac number, because 9689427 - 2³ = 9689419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9689437) 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, 9099 + ... + 10107.

It is an arithmetic number, because the mean of its divisors is an integer number (643370).

Almost surely, 2^9689427 is an apocalyptic number.

9689427 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

9689427 is a deficient number, since it is larger than the sum of its proper divisors (5751453).

9689427 is a wasteful number, since it uses less digits than its factorization.

9689427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123 (or 1120 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 9689427 is about 3112.7844448339. The cubic root of 9689427 is about 213.1896083250.

The spelling of 9689427 in words is "nine million, six hundred eighty-nine thousand, four hundred twenty-seven".