12239086 has 4 divisors (see below), whose sum is σ = 18358632. Its totient is φ = 6119542.

The previous prime is 12239077. The next prime is 12239093. The reversal of 12239086 is 68093221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68093221 = 7 ⋅9727603.

It is a super-2 number, since 2×12239086² = 299590452230792, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3059770 + ... + 3059773.

It is an arithmetic number, because the mean of its divisors is an integer number (4589658).

Almost surely, 2^12239086 is an apocalyptic number.

12239086 is a deficient number, since it is larger than the sum of its proper divisors (6119546).

12239086 is an equidigital number, since it uses as much as digits as its factorization.

12239086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6119545.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 12239086 is about 3498.4405097129. The cubic root of 12239086 is about 230.4533339871.

The spelling of 12239086 in words is "twelve million, two hundred thirty-nine thousand, eighty-six".