12809770 has 32 divisors (see below), whose sum is σ = 24008400. Its totient is φ = 4916736.

The previous prime is 12809761. The next prime is 12809791. The reversal of 12809770 is 7790821.

12809770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4532641 + 8277129 = 2129^2 + 2877^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32736 + ... + 33124.

Almost surely, 2^12809770 is an apocalyptic number.

12809770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12809770 is a deficient number, since it is larger than the sum of its proper divisors (11198630).

12809770 is a wasteful number, since it uses less digits than its factorization.

12809770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 12809770 is about 3579.0739025619. The cubic root of 12809770 is about 233.9809198654.

The spelling of 12809770 in words is "twelve million, eight hundred nine thousand, seven hundred seventy".