12389719 has 12 divisors (see below), whose sum is σ = 13480984. Its totient is φ = 11378304.

The previous prime is 12389693. The next prime is 12389723. The reversal of 12389719 is 91798321.

It is not a de Polignac number, because 12389719 - 2⁵ = 12389687 is a prime.

It is a super-2 number, since 2×12389719² = 307010273797922, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12389759) 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, 11929 + ... + 12925.

Almost surely, 2^12389719 is an apocalyptic number.

12389719 is a deficient number, since it is larger than the sum of its proper divisors (1091265).

12389719 is an equidigital number, since it uses as much as digits as its factorization.

12389719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1057 counting only the distinct ones).

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

The square root of 12389719 is about 3519.9032657163. The cubic root of 12389719 is about 231.3949192437.

The spelling of 12389719 in words is "twelve million, three hundred eighty-nine thousand, seven hundred nineteen".