12653938 has 12 divisors (see below), whose sum is σ = 20863710. Its totient is φ = 5751680.

The previous prime is 12653923. The next prime is 12653939. The reversal of 12653938 is 83935621.

It can be written as a sum of positive squares in only one way, i.e., 11108889 + 1545049 = 3333^2 + 1243^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12653897 and 12653906.

It is not an unprimeable number, because it can be changed into a prime (12653939) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25903 + ... + 26386.

Almost surely, 2^12653938 is an apocalyptic number.

12653938 is a deficient number, since it is larger than the sum of its proper divisors (8209772).

12653938 is a wasteful number, since it uses less digits than its factorization.

12653938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52313 (or 52302 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 12653938 is about 3557.2374112505. The cubic root of 12653938 is about 233.0282466200.

The spelling of 12653938 in words is "twelve million, six hundred fifty-three thousand, nine hundred thirty-eight".