12823719 has 16 divisors (see below), whose sum is σ = 18327552. Its totient is φ = 7954848.

The previous prime is 12823717. The next prime is 12823747. The reversal of 12823719 is 91732821.

It is not a de Polignac number, because 12823719 - 2¹ = 12823717 is a prime.

It is a super-2 number, since 2×12823719² = 328895537981922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12823719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12823717) 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 15 ways as a sum of consecutive naturals, for example, 42 + ... + 5064.

It is an arithmetic number, because the mean of its divisors is an integer number (1145472).

Almost surely, 2^12823719 is an apocalyptic number.

12823719 is a deficient number, since it is larger than the sum of its proper divisors (5503833).

12823719 is a wasteful number, since it uses less digits than its factorization.

12823719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086.

The product of its digits is 6048, while the sum is 33.

The square root of 12823719 is about 3581.0220608089. The cubic root of 12823719 is about 234.0658190186.

The spelling of 12823719 in words is "twelve million, eight hundred twenty-three thousand, seven hundred nineteen".