12704997 has 8 divisors (see below), whose sum is σ = 17028544. Its totient is φ = 8425728.

The previous prime is 12704981. The next prime is 12704999. The reversal of 12704997 is 79940721.

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

It is not a de Polignac number, because 12704997 - 2⁴ = 12704981 is a prime.

It is a super-2 number, since 2×12704997² = 322833897540018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12704999) 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, 10393 + ... + 11550.

It is an arithmetic number, because the mean of its divisors is an integer number (2128568).

Almost surely, 2^12704997 is an apocalyptic number.

It is an amenable number.

12704997 is a deficient number, since it is larger than the sum of its proper divisors (4323547).

12704997 is a wasteful number, since it uses less digits than its factorization.

12704997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22139.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 12704997 is about 3564.4069632970. The cubic root of 12704997 is about 233.3412512052.

The spelling of 12704997 in words is "twelve million, seven hundred four thousand, nine hundred ninety-seven".