12923217 has 24 divisors (see below), whose sum is σ = 19656000. Its totient is φ = 8166048.

The previous prime is 12923203. The next prime is 12923221. The reversal of 12923217 is 71232921.

It is not a de Polignac number, because 12923217 - 2⁶ = 12923153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12923227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30634 + ... + 31052.

It is an arithmetic number, because the mean of its divisors is an integer number (819000).

Almost surely, 2^12923217 is an apocalyptic number.

It is an amenable number.

12923217 is a deficient number, since it is larger than the sum of its proper divisors (6732783).

12923217 is a wasteful number, since it uses less digits than its factorization.

12923217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597 (or 594 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 12923217 is about 3594.8876199403. The cubic root of 12923217 is about 234.6696247887.

The spelling of 12923217 in words is "twelve million, nine hundred twenty-three thousand, two hundred seventeen".