12912770 has 32 divisors (see below), whose sum is σ = 25401600. Its totient is φ = 4697280.

The previous prime is 12912769. The next prime is 12912773. The reversal of 12912770 is 7721921.

It is not an unprimeable number, because it can be changed into a prime (12912773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8531 + ... + 9929.

It is an arithmetic number, because the mean of its divisors is an integer number (793800).

Almost surely, 2^12912770 is an apocalyptic number.

12912770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12912770 is a deficient number, since it is larger than the sum of its proper divisors (12488830).

12912770 is a wasteful number, since it uses less digits than its factorization.

12912770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 12912770 is about 3593.4342904803. The cubic root of 12912770 is about 234.6063728786.

The spelling of 12912770 in words is "twelve million, nine hundred twelve thousand, seven hundred seventy".