12478373 has 4 divisors (see below), whose sum is σ = 12713868. Its totient is φ = 12242880.

The previous prime is 12478363. The next prime is 12478387. The reversal of 12478373 is 37387421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37387421 = 19 ⋅1967759.

It can be written as a sum of positive squares in 2 ways, for example, as 10355524 + 2122849 = 3218^2 + 1457^2 .

It is a cyclic number.

It is not a de Polignac number, because 12478373 - 2¹⁰ = 12477349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478363) 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, 117668 + ... + 117773.

It is an arithmetic number, because the mean of its divisors is an integer number (3178467).

Almost surely, 2^12478373 is an apocalyptic number.

It is an amenable number.

12478373 is a deficient number, since it is larger than the sum of its proper divisors (235495).

12478373 is an equidigital number, since it uses as much as digits as its factorization.

12478373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235494.

The product of its digits is 28224, while the sum is 35.

The square root of 12478373 is about 3532.4740621836. The cubic root of 12478373 is about 231.9455195597.

The spelling of 12478373 in words is "twelve million, four hundred seventy-eight thousand, three hundred seventy-three".