12969971 has 8 divisors (see below), whose sum is σ = 14878560. Its totient is φ = 11075328.

The previous prime is 12969949. The next prime is 12969977. The reversal of 12969971 is 17996921.

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-12969971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12969977) 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, 1406 + ... + 5283.

It is an arithmetic number, because the mean of its divisors is an integer number (1859820).

Almost surely, 2^12969971 is an apocalyptic number.

12969971 is a deficient number, since it is larger than the sum of its proper divisors (1908589).

12969971 is an equidigital number, since it uses as much as digits as its factorization.

12969971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6973.

The product of its digits is 61236, while the sum is 44.

The square root of 12969971 is about 3601.3845948468. The cubic root of 12969971 is about 234.9522824497.

The spelling of 12969971 in words is "twelve million, nine hundred sixty-nine thousand, nine hundred seventy-one".