12219379 has 8 divisors (see below), whose sum is σ = 12972960. Its totient is φ = 11469696.

The previous prime is 12219367. The next prime is 12219391. The reversal of 12219379 is 97391221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12219367) and next prime (12219391).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12219379 - 2¹⁵ = 12186611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12219329) 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, 7837 + ... + 9265.

It is an arithmetic number, because the mean of its divisors is an integer number (1621620).

Almost surely, 2^12219379 is an apocalyptic number.

12219379 is a deficient number, since it is larger than the sum of its proper divisors (753581).

12219379 is a wasteful number, since it uses less digits than its factorization.

12219379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949.

The product of its digits is 6804, while the sum is 34.

The square root of 12219379 is about 3495.6228343458. The cubic root of 12219379 is about 230.3295779162.

The spelling of 12219379 in words is "twelve million, two hundred nineteen thousand, three hundred seventy-nine".