12722733 has 12 divisors (see below), whose sum is σ = 18523648. Its totient is φ = 8414280.

The previous prime is 12722729. The next prime is 12722737. The reversal of 12722733 is 33722721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12722729) and next prime (12722737).

It is not a de Polignac number, because 12722733 - 2² = 12722729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12722697 and 12722706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12722737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4423 + ... + 6708.

Almost surely, 2^12722733 is an apocalyptic number.

It is an amenable number.

12722733 is a deficient number, since it is larger than the sum of its proper divisors (5800915).

12722733 is a wasteful number, since it uses less digits than its factorization.

12722733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11264 (or 11261 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 12722733 is about 3566.8940270213. The cubic root of 12722733 is about 233.4497811047.

It can be divided in two parts, 127227 and 33, that added together give a triangular number (127260 = T₅₀₄).

The spelling of 12722733 in words is "twelve million, seven hundred twenty-two thousand, seven hundred thirty-three".