12939467 has 4 divisors (see below), whose sum is σ = 13158840. Its totient is φ = 12720096.

The previous prime is 12939463. The next prime is 12939491. The reversal of 12939467 is 76493921.

12939467 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76493921 = 7 ⋅10927703.

It is a cyclic number.

It is not a de Polignac number, because 12939467 - 2² = 12939463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12939463) 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, 109598 + ... + 109715.

It is an arithmetic number, because the mean of its divisors is an integer number (3289710).

Almost surely, 2^12939467 is an apocalyptic number.

12939467 is a deficient number, since it is larger than the sum of its proper divisors (219373).

12939467 is an equidigital number, since it uses as much as digits as its factorization.

12939467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219372.

The product of its digits is 81648, while the sum is 41.

The square root of 12939467 is about 3597.1470639939. The cubic root of 12939467 is about 234.7679435528.

The spelling of 12939467 in words is "twelve million, nine hundred thirty-nine thousand, four hundred sixty-seven".