12038986 has 12 divisors (see below), whose sum is σ = 18563958. Its totient is φ = 5855472.

The previous prime is 12038981. The next prime is 12038993. The reversal of 12038986 is 68983021.

It can be written as a sum of positive squares in 3 ways, for example, as 12006225 + 32761 = 3465^2 + 181^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (12038981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 540 + ... + 4936.

Almost surely, 2^12038986 is an apocalyptic number.

12038986 is a deficient number, since it is larger than the sum of its proper divisors (6524972).

12038986 is an equidigital number, since it uses as much as digits as its factorization.

12038986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4473 (or 4436 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 12038986 is about 3469.7241965321. The cubic root of 12038986 is about 229.1905128831.

The spelling of 12038986 in words is "twelve million, thirty-eight thousand, nine hundred eighty-six".