12707805 has 16 divisors (see below), whose sum is σ = 22181184. Its totient is φ = 6161280.

The previous prime is 12707801. The next prime is 12707837. The reversal of 12707805 is 50870721.

It is a happy number.

It is not a de Polignac number, because 12707805 - 2² = 12707801 is a prime.

It is a super-2 number, since 2×12707805² = 322976615836050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12707801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38344 + ... + 38673.

It is an arithmetic number, because the mean of its divisors is an integer number (1386324).

Almost surely, 2^12707805 is an apocalyptic number.

12707805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12707805 is a deficient number, since it is larger than the sum of its proper divisors (9473379).

12707805 is a wasteful number, since it uses less digits than its factorization.

12707805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77036.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 12707805 is about 3564.8008359514. The cubic root of 12707805 is about 233.3584406090.

The spelling of 12707805 in words is "twelve million, seven hundred seven thousand, eight hundred five".