12690563 has 8 divisors (see below), whose sum is σ = 13178880. Its totient is φ = 12207240.

The previous prime is 12690553. The next prime is 12690571. The reversal of 12690563 is 36509621.

It is a happy number.

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 12690563 - 2¹⁶ = 12625027 is a prime.

It is a super-3 number, since 3×12690563³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12690523) 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, 4406 + ... + 6692.

It is an arithmetic number, because the mean of its divisors is an integer number (1647360).

Almost surely, 2^12690563 is an apocalyptic number.

12690563 is a deficient number, since it is larger than the sum of its proper divisors (488317).

12690563 is a wasteful number, since it uses less digits than its factorization.

12690563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 12690563 is about 3562.3816471569. The cubic root of 12690563 is about 233.2528522891.

The spelling of 12690563 in words is "twelve million, six hundred ninety thousand, five hundred sixty-three".