12619649 has 8 divisors (see below), whose sum is σ = 14446080. Its totient is φ = 10799136.

The previous prime is 12619643. The next prime is 12619681. The reversal of 12619649 is 94691621.

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

It is a cyclic number.

It is not a de Polignac number, because 12619649 - 2²⁰ = 11571073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12619643) 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, 4997 + ... + 7085.

It is an arithmetic number, because the mean of its divisors is an integer number (1805760).

Almost surely, 2^12619649 is an apocalyptic number.

It is an amenable number.

12619649 is a deficient number, since it is larger than the sum of its proper divisors (1826431).

12619649 is an equidigital number, since it uses as much as digits as its factorization.

12619649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959.

The product of its digits is 23328, while the sum is 38.

The square root of 12619649 is about 3552.4145309916. The cubic root of 12619649 is about 232.8175735032.

The spelling of 12619649 in words is "twelve million, six hundred nineteen thousand, six hundred forty-nine".