12705938 has 8 divisors (see below), whose sum is σ = 21781632. Its totient is φ = 5445396.

The previous prime is 12705923. The next prime is 12705983. The reversal of 12705938 is 83950721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12705938² = 322881720919688, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12705898 and 12705907.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453770 + ... + 453797.

It is an arithmetic number, because the mean of its divisors is an integer number (2722704).

Almost surely, 2^12705938 is an apocalyptic number.

12705938 is a deficient number, since it is larger than the sum of its proper divisors (9075694).

12705938 is an equidigital number, since it uses as much as digits as its factorization.

12705938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907576.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 12705938 is about 3564.5389603706. The cubic root of 12705938 is about 233.3470118965.

The spelling of 12705938 in words is "twelve million, seven hundred five thousand, nine hundred thirty-eight".