12749670 has 32 divisors (see below), whose sum is σ = 33999840. Its totient is φ = 3399840.

The previous prime is 12749663. The next prime is 12749689. The reversal of 12749670 is 7694721.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23341 + ... + 23880.

It is an arithmetic number, because the mean of its divisors is an integer number (1062495).

Almost surely, 2^12749670 is an apocalyptic number.

12749670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12749670 is an abundant number, since it is smaller than the sum of its proper divisors (21250170).

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

12749670 is a wasteful number, since it uses less digits than its factorization.

12749670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47237 (or 47231 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 12749670 is about 3570.6680047296. The cubic root of 12749670 is about 233.6144208860.

The spelling of 12749670 in words is "twelve million, seven hundred forty-nine thousand, six hundred seventy".