9688931427 has 32 divisors (see below), whose sum is σ = 15056036352. Its totient is φ = 5428122624.

The previous prime is 9688931389. The next prime is 9688931437. The reversal of 9688931427 is 7241398869.

It is not a de Polignac number, because 9688931427 - 2¹² = 9688927331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9688931437) 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 31 ways as a sum of consecutive naturals, for example, 195733 + ... + 240185.

It is an arithmetic number, because the mean of its divisors is an integer number (470501136).

Almost surely, 2^9688931427 is an apocalyptic number.

9688931427 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

9688931427 is a deficient number, since it is larger than the sum of its proper divisors (5367104925).

9688931427 is a wasteful number, since it uses less digits than its factorization.

9688931427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44667.

The product of its digits is 5225472, while the sum is 57.

The square root of 9688931427 is about 98432.3698129838. The cubic root of 9688931427 is about 2131.8597368232.

The spelling of 9688931427 in words is "nine billion, six hundred eighty-eight million, nine hundred thirty-one thousand, four hundred twenty-seven".