12977923 has 8 divisors (see below), whose sum is σ = 14971392. Its totient is φ = 11019336.

The previous prime is 12977879. The next prime is 12977927. The reversal of 12977923 is 32977921.

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 12977923 - 2⁹ = 12977411 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (12977927) 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, 7915 + ... + 9412.

It is an arithmetic number, because the mean of its divisors is an integer number (1871424).

Almost surely, 2^12977923 is an apocalyptic number.

12977923 is a deficient number, since it is larger than the sum of its proper divisors (1993469).

12977923 is a wasteful number, since it uses less digits than its factorization.

12977923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17441.

The product of its digits is 47628, while the sum is 40.

The square root of 12977923 is about 3602.4884455054. The cubic root of 12977923 is about 235.0002897235. Note that the first 3 decimals are identical.

The spelling of 12977923 in words is "twelve million, nine hundred seventy-seven thousand, nine hundred twenty-three".