12473447 has 4 divisors (see below), whose sum is σ = 14255376. Its totient is φ = 10691520.

The previous prime is 12473441. The next prime is 12473479. The reversal of 12473447 is 74437421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74437421 = 19 ⋅3917759.

It is a de Polignac number, because none of the positive numbers 2^k-12473447 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 (12473441) 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, 890954 + ... + 890967.

It is an arithmetic number, because the mean of its divisors is an integer number (3563844).

Almost surely, 2^12473447 is an apocalyptic number.

12473447 is a deficient number, since it is larger than the sum of its proper divisors (1781929).

12473447 is an equidigital number, since it uses as much as digits as its factorization.

12473447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781928.

The product of its digits is 18816, while the sum is 32.

The square root of 12473447 is about 3531.7767483237. The cubic root of 12473447 is about 231.9149943727.

The spelling of 12473447 in words is "twelve million, four hundred seventy-three thousand, four hundred forty-seven".