12749906 has 16 divisors (see below), whose sum is σ = 20793024. Its totient is φ = 5828304.

The previous prime is 12749861. The next prime is 12749917. The reversal of 12749906 is 60994721.

It is a self number, because there is not a number n which added to its sum of digits gives 12749906.

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, 491 + ... + 5073.

It is an arithmetic number, because the mean of its divisors is an integer number (1299564).

Almost surely, 2^12749906 is an apocalyptic number.

12749906 is a deficient number, since it is larger than the sum of its proper divisors (8043118).

12749906 is a wasteful number, since it uses less digits than its factorization.

12749906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4705.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 12749906 is about 3570.7010516144. The cubic root of 12749906 is about 233.6158623001.

The spelling of 12749906 in words is "twelve million, seven hundred forty-nine thousand, nine hundred six".