12009700 has 18 divisors (see below), whose sum is σ = 26061266. Its totient is φ = 4803840.

The previous prime is 12009643. The next prime is 12009707. The reversal of 12009700 is 790021.

12009700 = T₅₂₈ + T₅₂₉ + ... + T₆₀₂.

It can be written as a sum of positive squares in 3 ways, for example, as 10404 + 11999296 = 102^2 + 3464^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12009707) 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 5 ways as a sum of consecutive naturals, for example, 59949 + ... + 60148.

Almost surely, 2^12009700 is an apocalyptic number.

12009700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12009700 is an abundant number, since it is smaller than the sum of its proper divisors (14051566).

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

12009700 is a wasteful number, since it uses less digits than its factorization.

12009700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120111 (or 120104 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 12009700 is about 3465.5014067231. The cubic root of 12009700 is about 229.0045192754.

Adding to 12009700 its reverse (790021), we get a palindrome (12799721).

The spelling of 12009700 in words is "twelve million, nine thousand, seven hundred".