12963653 has 8 divisors (see below), whose sum is σ = 13449720. Its totient is φ = 12484800.

The previous prime is 12963649. The next prime is 12963679. The reversal of 12963653 is 35636921.

It can be written as a sum of positive squares in 4 ways, for example, as 4190209 + 8773444 = 2047^2 + 2962^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12963653 - 2² = 12963649 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12963623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2003 + ... + 5471.

It is an arithmetic number, because the mean of its divisors is an integer number (1681215).

Almost surely, 2^12963653 is an apocalyptic number.

It is an amenable number.

12963653 is a deficient number, since it is larger than the sum of its proper divisors (486067).

12963653 is a wasteful number, since it uses less digits than its factorization.

12963653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607.

The product of its digits is 29160, while the sum is 35.

The square root of 12963653 is about 3600.5073253640. The cubic root of 12963653 is about 234.9141258591.

The spelling of 12963653 in words is "twelve million, nine hundred sixty-three thousand, six hundred fifty-three".