12976999 has 4 divisors (see below), whose sum is σ = 14830864. Its totient is φ = 11123136.

The previous prime is 12976993. The next prime is 12977009. The reversal of 12976999 is 99967921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99967921 = 2293 ⋅43597.

It is a cyclic number.

It is not a de Polignac number, because 12976999 - 2¹⁵ = 12944231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12976993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926922 + ... + 926935.

It is an arithmetic number, because the mean of its divisors is an integer number (3707716).

Almost surely, 2^12976999 is an apocalyptic number.

12976999 is a deficient number, since it is larger than the sum of its proper divisors (1853865).

12976999 is an equidigital number, since it uses as much as digits as its factorization.

12976999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853864.

The product of its digits is 551124, while the sum is 52.

The square root of 12976999 is about 3602.3601985365. The cubic root of 12976999 is about 234.9947124206.

The spelling of 12976999 in words is "twelve million, nine hundred seventy-six thousand, nine hundred ninety-nine".