12904769 has 4 divisors (see below), whose sum is σ = 12919344. Its totient is φ = 12890196.

The previous prime is 12904763. The next prime is 12904777. The reversal of 12904769 is 96740921.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96740921 = 23 ⋅4206127.

It is a cyclic number.

It is not a de Polignac number, because 12904769 - 2²⁰ = 11856193 is a prime.

It is a super-2 number, since 2×12904769² = 333066125886722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12904763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5867 + ... + 7760.

It is an arithmetic number, because the mean of its divisors is an integer number (3229836).

Almost surely, 2^12904769 is an apocalyptic number.

It is an amenable number.

12904769 is a deficient number, since it is larger than the sum of its proper divisors (14575).

12904769 is an equidigital number, since it uses as much as digits as its factorization.

12904769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14574.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 12904769 is about 3592.3208375645. The cubic root of 12904769 is about 234.5579073308.

The spelling of 12904769 in words is "twelve million, nine hundred four thousand, seven hundred sixty-nine".