12923558 has 4 divisors (see below), whose sum is σ = 19385340. Its totient is φ = 6461778.

The previous prime is 12923551. The next prime is 12923593. The reversal of 12923558 is 85532921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85532921 = 2963 ⋅28867.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12923551) 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 as a sum of consecutive naturals, namely, 3230888 + ... + 3230891.

It is an arithmetic number, because the mean of its divisors is an integer number (4846335).

Almost surely, 2^12923558 is an apocalyptic number.

12923558 is a deficient number, since it is larger than the sum of its proper divisors (6461782).

12923558 is an equidigital number, since it uses as much as digits as its factorization.

12923558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6461781.

The product of its digits is 21600, while the sum is 35.

The square root of 12923558 is about 3594.9350480920. The cubic root of 12923558 is about 234.6716888166.

The spelling of 12923558 in words is "twelve million, nine hundred twenty-three thousand, five hundred fifty-eight".