12975770 has 16 divisors (see below), whose sum is σ = 23460840. Its totient is φ = 5167104.

The previous prime is 12975769. The next prime is 12975779. The reversal of 12975770 is 7757921.

12975770 is nontrivially palindromic in base 9.

It can be written as a sum of positive squares in 4 ways, for example, as 6355441 + 6620329 = 2521^2 + 2573^2 .

It is not an unprimeable number, because it can be changed into a prime (12975779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455 + ... + 5114.

Almost surely, 2^12975770 is an apocalyptic number.

12975770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12975770 is a deficient number, since it is larger than the sum of its proper divisors (10485070).

12975770 is a wasteful number, since it uses less digits than its factorization.

12975770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5809.

The product of its (nonzero) digits is 30870, while the sum is 38.

The square root of 12975770 is about 3602.1896118889. The cubic root of 12975770 is about 234.9872937147.

The spelling of 12975770 in words is "twelve million, nine hundred seventy-five thousand, seven hundred seventy".