12467842 has 4 divisors (see below), whose sum is σ = 18701766. Its totient is φ = 6233920.

The previous prime is 12467837. The next prime is 12467843. The reversal of 12467842 is 24876421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24876421 = 1301 ⋅19121.

It can be written as a sum of positive squares in only one way, i.e., 7667361 + 4800481 = 2769^2 + 2191^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12467798 and 12467807.

It is not an unprimeable number, because it can be changed into a prime (12467843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3116959 + ... + 3116962.

Almost surely, 2^12467842 is an apocalyptic number.

12467842 is a deficient number, since it is larger than the sum of its proper divisors (6233924).

12467842 is an equidigital number, since it uses as much as digits as its factorization.

12467842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6233923.

The product of its digits is 21504, while the sum is 34.

The square root of 12467842 is about 3530.9831492093. The cubic root of 12467842 is about 231.8802518166.

The spelling of 12467842 in words is "twelve million, four hundred sixty-seven thousand, eight hundred forty-two".