9687139 has 12 divisors (see below), whose sum is σ = 12170032. Its totient is φ = 7547760.

The previous prime is 9687137. The next prime is 9687143. The reversal of 9687139 is 9317869.

It is not a de Polignac number, because 9687139 - 2¹ = 9687137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9687095 and 9687104.

It is not an unprimeable number, because it can be changed into a prime (9687137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4872 + ... + 6565.

Almost surely, 2^9687139 is an apocalyptic number.

9687139 is a deficient number, since it is larger than the sum of its proper divisors (2482893).

9687139 is a wasteful number, since it uses less digits than its factorization.

9687139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11466 (or 11455 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 9687139 is about 3112.4169065214. The cubic root of 9687139 is about 213.1728265888.

The spelling of 9687139 in words is "nine million, six hundred eighty-seven thousand, one hundred thirty-nine".