12690854 has 16 divisors (see below), whose sum is σ = 20900160. Its totient is φ = 5731560.

The previous prime is 12690851. The next prime is 12690859. The reversal of 12690854 is 45809621.

It is a super-2 number, since 2×12690854² = 322115550498632, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12690851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1817 + ... + 5355.

It is an arithmetic number, because the mean of its divisors is an integer number (1306260).

Almost surely, 2^12690854 is an apocalyptic number.

12690854 is a deficient number, since it is larger than the sum of its proper divisors (8209306).

12690854 is a wasteful number, since it uses less digits than its factorization.

12690854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 12690854 is about 3562.4224903849. The cubic root of 12690854 is about 233.2546351378.

The spelling of 12690854 in words is "twelve million, six hundred ninety thousand, eight hundred fifty-four".