12747433 has 8 divisors (see below), whose sum is σ = 13827240. Its totient is φ = 11704320.

The previous prime is 12747421. The next prime is 12747437. The reversal of 12747433 is 33474721.

It can be written as a sum of positive squares in 4 ways, for example, as 3968064 + 8779369 = 1992^2 + 2963^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12747433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12747395 and 12747404.

It is not an unprimeable number, because it can be changed into a prime (12747437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8448 + ... + 9841.

It is an arithmetic number, because the mean of its divisors is an integer number (1728405).

Almost surely, 2^12747433 is an apocalyptic number.

It is an amenable number.

12747433 is a deficient number, since it is larger than the sum of its proper divisors (1079807).

12747433 is a wasteful number, since it uses less digits than its factorization.

12747433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18347.

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

The square root of 12747433 is about 3570.3547442796. The cubic root of 12747433 is about 233.6007571068.

The spelling of 12747433 in words is "twelve million, seven hundred forty-seven thousand, four hundred thirty-three".