12875690 has 8 divisors (see below), whose sum is σ = 23176260. Its totient is φ = 5150272.

The previous prime is 12875689. The next prime is 12875761. The reversal of 12875690 is 9657821.

It can be written as a sum of positive squares in 2 ways, for example, as 11909401 + 966289 = 3451^2 + 983^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12875690² = 331566785952200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643775 + ... + 643794.

Almost surely, 2^12875690 is an apocalyptic number.

12875690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12875690 is a deficient number, since it is larger than the sum of its proper divisors (10300570).

12875690 is a wasteful number, since it uses less digits than its factorization.

12875690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287576.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 12875690 is about 3588.2711714696. The cubic root of 12875690 is about 234.3815942441.

The spelling of 12875690 in words is "twelve million, eight hundred seventy-five thousand, six hundred ninety".