12649358 has 4 divisors (see below), whose sum is σ = 18974040. Its totient is φ = 6324678.

The previous prime is 12649349. The next prime is 12649391. The reversal of 12649358 is 85394621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3162338 + ... + 3162341.

It is an arithmetic number, because the mean of its divisors is an integer number (4743510).

Almost surely, 2^12649358 is an apocalyptic number.

12649358 is a deficient number, since it is larger than the sum of its proper divisors (6324682).

12649358 is an equidigital number, since it uses as much as digits as its factorization.

12649358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6324681.

The product of its digits is 51840, while the sum is 38.

The square root of 12649358 is about 3556.5935950007. The cubic root of 12649358 is about 233.0001289395. Note that the first 3 decimals are identical.

The spelling of 12649358 in words is "twelve million, six hundred forty-nine thousand, three hundred fifty-eight".