12904197 has 4 divisors (see below), whose sum is σ = 17205600. Its totient is φ = 8602796.

The previous prime is 12904193. The next prime is 12904223. The reversal of 12904197 is 79140921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12904197 - 2² = 12904193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12904193) 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 3 ways as a sum of consecutive naturals, for example, 2150697 + ... + 2150702.

It is an arithmetic number, because the mean of its divisors is an integer number (4301400).

Almost surely, 2^12904197 is an apocalyptic number.

It is an amenable number.

12904197 is a deficient number, since it is larger than the sum of its proper divisors (4301403).

12904197 is an equidigital number, since it uses as much as digits as its factorization.

12904197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301402.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 12904197 is about 3592.2412224125. The cubic root of 12904197 is about 234.5544417100.

The spelling of 12904197 in words is "twelve million, nine hundred four thousand, one hundred ninety-seven".