12705735 has 16 divisors (see below), whose sum is σ = 23233536. Its totient is φ = 5808288.

The previous prime is 12705731. The next prime is 12705757. The reversal of 12705735 is 53750721.

It is not a de Polignac number, because 12705735 - 2² = 12705731 is a prime.

It is a super-2 number, since 2×12705735² = 322871403780450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12705731) 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, 60399 + ... + 60608.

It is an arithmetic number, because the mean of its divisors is an integer number (1452096).

Almost surely, 2^12705735 is an apocalyptic number.

12705735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12705735 is a deficient number, since it is larger than the sum of its proper divisors (10527801).

12705735 is a wasteful number, since it uses less digits than its factorization.

12705735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121022.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 12705735 is about 3564.5104853261. The cubic root of 12705735 is about 233.3457691785.

The spelling of 12705735 in words is "twelve million, seven hundred five thousand, seven hundred thirty-five".