12966890 has 8 divisors (see below), whose sum is σ = 23340420. Its totient is φ = 5186752.

The previous prime is 12966881. The next prime is 12966929. The reversal of 12966890 is 9866921.

It can be written as a sum of positive squares in 2 ways, for example, as 12229009 + 737881 = 3497^2 + 859^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648335 + ... + 648354.

Almost surely, 2^12966890 is an apocalyptic number.

12966890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12966890 is a deficient number, since it is larger than the sum of its proper divisors (10373530).

12966890 is a wasteful number, since it uses less digits than its factorization.

12966890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296696.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 12966890 is about 3600.9568172918. The cubic root of 12966890 is about 234.9336767717.

The spelling of 12966890 in words is "twelve million, nine hundred sixty-six thousand, eight hundred ninety".