9971137 has 8 divisors (see below), whose sum is σ = 10903392. Its totient is φ = 9043200.

The previous prime is 9971131. The next prime is 9971147. The reversal of 9971137 is 7311799.

9971137 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9971137 is a prime.

It is a Duffinian number.

9971137 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9971096 and 9971105.

It is not an unprimeable number, because it can be changed into a prime (9971131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5562 + ... + 7132.

It is an arithmetic number, because the mean of its divisors is an integer number (1362924).

Almost surely, 2^9971137 is an apocalyptic number.

It is an amenable number.

9971137 is a deficient number, since it is larger than the sum of its proper divisors (932255).

9971137 is a wasteful number, since it uses less digits than its factorization.

9971137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159.

The product of its digits is 11907, while the sum is 37.

The square root of 9971137 is about 3157.7107213930. The cubic root of 9971137 is about 215.2359910990.

The spelling of 9971137 in words is "nine million, nine hundred seventy-one thousand, one hundred thirty-seven".