12786090 has 32 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 3317184.

The previous prime is 12786089. The next prime is 12786097. The reversal of 12786090 is 9068721.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12786097) 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 15 ways as a sum of consecutive naturals, for example, 4650 + ... + 6869.

It is an arithmetic number, because the mean of its divisors is an integer number (984960).

Almost surely, 2^12786090 is an apocalyptic number.

12786090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12786090 is an abundant number, since it is smaller than the sum of its proper divisors (18732630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12786090 is a wasteful number, since it uses less digits than its factorization.

12786090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11566.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 12786090 is about 3575.7642539742. The cubic root of 12786090 is about 233.8366527465.

The spelling of 12786090 in words is "twelve million, seven hundred eighty-six thousand, ninety".