12923419 has 4 divisors (see below), whose sum is σ = 13142520. Its totient is φ = 12704320.

The previous prime is 12923387. The next prime is 12923453. The reversal of 12923419 is 91432921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12923419 - 2⁵ = 12923387 is a prime.

It is a super-2 number, since 2×12923419² = 334029517299122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12923479) 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, 109462 + ... + 109579.

It is an arithmetic number, because the mean of its divisors is an integer number (3285630).

Almost surely, 2^12923419 is an apocalyptic number.

12923419 is a deficient number, since it is larger than the sum of its proper divisors (219101).

12923419 is an equidigital number, since it uses as much as digits as its factorization.

12923419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219100.

The product of its digits is 3888, while the sum is 31.

The square root of 12923419 is about 3594.9157152846. The cubic root of 12923419 is about 234.6708474724.

The spelling of 12923419 in words is "twelve million, nine hundred twenty-three thousand, four hundred nineteen".