12379819 has 16 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 11278080.

The previous prime is 12379817. The next prime is 12379823. The reversal of 12379819 is 91897321.

It is a cyclic number.

It is not a de Polignac number, because 12379819 - 2¹ = 12379817 is a prime.

It is a super-2 number, since 2×12379819² = 306519836945522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12379813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69072 + ... + 69250.

It is an arithmetic number, because the mean of its divisors is an integer number (846720).

Almost surely, 2^12379819 is an apocalyptic number.

12379819 is a deficient number, since it is larger than the sum of its proper divisors (1167701).

12379819 is a wasteful number, since it uses less digits than its factorization.

12379819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330.

The product of its digits is 27216, while the sum is 40.

The square root of 12379819 is about 3518.4966960337. The cubic root of 12379819 is about 231.3332708149. Note that the first 3 decimals are identical.

The spelling of 12379819 in words is "twelve million, three hundred seventy-nine thousand, eight hundred nineteen".