12705394 has 16 divisors (see below), whose sum is σ = 20720448. Its totient is φ = 5807952.

The previous prime is 12705377. The next prime is 12705397. The reversal of 12705394 is 49350721.

It is a super-2 number, since 2×12705394² = 322854073390472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12705397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499 + ... + 5065.

It is an arithmetic number, because the mean of its divisors is an integer number (1295028).

Almost surely, 2^12705394 is an apocalyptic number.

12705394 is a deficient number, since it is larger than the sum of its proper divisors (8015054).

12705394 is a wasteful number, since it uses less digits than its factorization.

12705394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 12705394 is about 3564.4626523503. The cubic root of 12705394 is about 233.3436816272.

The spelling of 12705394 in words is "twelve million, seven hundred five thousand, three hundred ninety-four".