12986370 has 48 divisors (see below), whose sum is σ = 33945912. Its totient is φ = 3444480.

The previous prime is 12986359. The next prime is 12986377. The reversal of 12986370 is 7368921.

12986370 is a `hidden beast` number, since 12 + 9 + 8 + 637 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4915089 + 8071281 = 2217^2 + 2841^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12986377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27940 + ... + 28400.

Almost surely, 2^12986370 is an apocalyptic number.

12986370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12986370 is an abundant number, since it is smaller than the sum of its proper divisors (20959542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12986370 is a wasteful number, since it uses less digits than its factorization.

12986370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12986370 is about 3603.6606388504. The cubic root of 12986370 is about 235.0512639030.

The spelling of 12986370 in words is "twelve million, nine hundred eighty-six thousand, three hundred seventy".