12319886 has 4 divisors (see below), whose sum is σ = 18479832. Its totient is φ = 6159942.

The previous prime is 12319877. The next prime is 12319907. The reversal of 12319886 is 68891321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68891321 = 19 ⋅3625859.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3079970 + ... + 3079973.

It is an arithmetic number, because the mean of its divisors is an integer number (4619958).

Almost surely, 2^12319886 is an apocalyptic number.

12319886 is a deficient number, since it is larger than the sum of its proper divisors (6159946).

12319886 is an equidigital number, since it uses as much as digits as its factorization.

12319886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6159945.

The product of its digits is 20736, while the sum is 38.

The square root of 12319886 is about 3509.9695155371. The cubic root of 12319886 is about 230.9593576793.

The spelling of 12319886 in words is "twelve million, three hundred nineteen thousand, eight hundred eighty-six".