12743473 has 4 divisors (see below), whose sum is σ = 12869748. Its totient is φ = 12617200.

The previous prime is 12743453. The next prime is 12743477. The reversal of 12743473 is 37434721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37434721 = 4621 ⋅8101.

It can be written as a sum of positive squares in 2 ways, for example, as 8025889 + 4717584 = 2833^2 + 2172^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12743473 is a prime.

It is a super-2 number, since 2×12743473² = 324792208203458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12743477) 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 in 3 ways as a sum of consecutive naturals, for example, 62986 + ... + 63187.

It is an arithmetic number, because the mean of its divisors is an integer number (3217437).

Almost surely, 2^12743473 is an apocalyptic number.

It is an amenable number.

12743473 is a deficient number, since it is larger than the sum of its proper divisors (126275).

12743473 is a wasteful number, since it uses less digits than its factorization.

12743473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126274.

The product of its digits is 14112, while the sum is 31.

The square root of 12743473 is about 3569.8001344613. The cubic root of 12743473 is about 233.5765651825.

The spelling of 12743473 in words is "twelve million, seven hundred forty-three thousand, four hundred seventy-three".