12649366 has 16 divisors (see below), whose sum is σ = 19354608. Its totient is φ = 6199200.

The previous prime is 12649349. The next prime is 12649391. The reversal of 12649366 is 66394621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29836 + ... + 30256.

It is an arithmetic number, because the mean of its divisors is an integer number (1209663).

Almost surely, 2^12649366 is an apocalyptic number.

12649366 is a deficient number, since it is larger than the sum of its proper divisors (6705242).

12649366 is a wasteful number, since it uses less digits than its factorization.

12649366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687.

The product of its digits is 46656, while the sum is 37.

The square root of 12649366 is about 3556.5947196722. The cubic root of 12649366 is about 233.0001780593. Note that the first 3 decimals are identical.

Subtracting from 12649366 its product of digits (46656), we obtain a triangular number (12602710 = T₅₀₂₀).

The spelling of 12649366 in words is "twelve million, six hundred forty-nine thousand, three hundred sixty-six".