9231971 has 8 divisors (see below), whose sum is σ = 10796544. Its totient is φ = 7728840.

The previous prime is 9231953. The next prime is 9231979. The reversal of 9231971 is 1791329.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-9231971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9231979) 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 7 ways as a sum of consecutive naturals, for example, 15035 + ... + 15636.

It is an arithmetic number, because the mean of its divisors is an integer number (1349568).

Almost surely, 2^9231971 is an apocalyptic number.

9231971 is a deficient number, since it is larger than the sum of its proper divisors (1564573).

9231971 is a wasteful number, since it uses less digits than its factorization.

9231971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30721.

The product of its digits is 3402, while the sum is 32.

The square root of 9231971 is about 3038.4158701534. The cubic root of 9231971 is about 209.7803523522.

The spelling of 9231971 in words is "nine million, two hundred thirty-one thousand, nine hundred seventy-one".