12434986 has 4 divisors (see below), whose sum is σ = 18652482. Its totient is φ = 6217492.

The previous prime is 12434971. The next prime is 12434993. The reversal of 12434986 is 68943421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68943421 = 3739 ⋅18439.

It can be written as a sum of positive squares in only one way, i.e., 12215025 + 219961 = 3495^2 + 469^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3108745 + ... + 3108748.

Almost surely, 2^12434986 is an apocalyptic number.

12434986 is a deficient number, since it is larger than the sum of its proper divisors (6217496).

12434986 is an equidigital number, since it uses as much as digits as its factorization.

12434986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6217495.

The product of its digits is 41472, while the sum is 37.

The square root of 12434986 is about 3526.3275514336. The cubic root of 12434986 is about 231.6763844126.

The spelling of 12434986 in words is "twelve million, four hundred thirty-four thousand, nine hundred eighty-six".