12972907 has 8 divisors (see below), whose sum is σ = 13309920. Its totient is φ = 12640320.

The previous prime is 12972901. The next prime is 12972929. The reversal of 12972907 is 70927921.

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

It is a cyclic number.

It is not a de Polignac number, because 12972907 - 2¹⁵ = 12940139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12972901) 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, 5293 + ... + 7345.

It is an arithmetic number, because the mean of its divisors is an integer number (1663740).

Almost surely, 2^12972907 is an apocalyptic number.

12972907 is a deficient number, since it is larger than the sum of its proper divisors (337013).

12972907 is an equidigital number, since it uses as much as digits as its factorization.

12972907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 12972907 is about 3601.7921927840. The cubic root of 12972907 is about 234.9700097537.

The spelling of 12972907 in words is "twelve million, nine hundred seventy-two thousand, nine hundred seven".