12719399 has 12 divisors (see below), whose sum is σ = 15979152. Its totient is φ = 9910560.

The previous prime is 12719387. The next prime is 12719407. The reversal of 12719399 is 99391721.

It is not a de Polignac number, because 12719399 - 2¹⁶ = 12653863 is a prime.

It is a super-2 number, since 2×12719399² = 323566221842402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12719309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6662 + ... + 8355.

It is an arithmetic number, because the mean of its divisors is an integer number (1331596).

Almost surely, 2^12719399 is an apocalyptic number.

12719399 is a deficient number, since it is larger than the sum of its proper divisors (3259753).

12719399 is a wasteful number, since it uses less digits than its factorization.

12719399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15046 (or 15035 counting only the distinct ones).

The product of its digits is 30618, while the sum is 41.

The square root of 12719399 is about 3566.4266430140. The cubic root of 12719399 is about 233.4293874370.

The spelling of 12719399 in words is "twelve million, seven hundred nineteen thousand, three hundred ninety-nine".