12705297 has 16 divisors (see below), whose sum is σ = 18627840. Its totient is φ = 7638800.

The previous prime is 12705289. The next prime is 12705311. The reversal of 12705297 is 79250721.

It is a cyclic number.

It is not a de Polignac number, because 12705297 - 2³ = 12705289 is a prime.

It is a super-2 number, since 2×12705297² = 322849143716418, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12705197) 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 15 ways as a sum of consecutive naturals, for example, 2854 + ... + 5792.

It is an arithmetic number, because the mean of its divisors is an integer number (1164240).

Almost surely, 2^12705297 is an apocalyptic number.

It is an amenable number.

12705297 is a deficient number, since it is larger than the sum of its proper divisors (5922543).

12705297 is a wasteful number, since it uses less digits than its factorization.

12705297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3084.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 12705297 is about 3564.4490457853. The cubic root of 12705297 is about 233.3430878008.

The spelling of 12705297 in words is "twelve million, seven hundred five thousand, two hundred ninety-seven".