12722938 has 8 divisors (see below), whose sum is σ = 19742580. Its totient is φ = 6142080.

The previous prime is 12722923. The next prime is 12722959. The reversal of 12722938 is 83922721.

It can be written as a sum of positive squares in 2 ways, for example, as 11716929 + 1006009 = 3423^2 + 1003^2 .

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

It is an unprimeable number.

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, 109623 + ... + 109738.

Almost surely, 2^12722938 is an apocalyptic number.

12722938 is a deficient number, since it is larger than the sum of its proper divisors (7019642).

12722938 is a wasteful number, since it uses less digits than its factorization.

12722938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219392.

The product of its digits is 12096, while the sum is 34.

The square root of 12722938 is about 3566.9227633914. The cubic root of 12722938 is about 233.4510349482.

The spelling of 12722938 in words is "twelve million, seven hundred twenty-two thousand, nine hundred thirty-eight".