12909963 has 16 divisors (see below), whose sum is σ = 18884736. Its totient is φ = 7779840.

The previous prime is 12909961. The next prime is 12909973. The reversal of 12909963 is 36990921.

It is a happy number.

It is not a de Polignac number, because 12909963 - 2¹ = 12909961 is a prime.

It is a super-2 number, since 2×12909963² = 333334289322738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12909961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5356 + ... + 7382.

It is an arithmetic number, because the mean of its divisors is an integer number (1180296).

Almost surely, 2^12909963 is an apocalyptic number.

12909963 is a deficient number, since it is larger than the sum of its proper divisors (5974773).

12909963 is a wasteful number, since it uses less digits than its factorization.

12909963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234.

The product of its (nonzero) digits is 26244, while the sum is 39.

The square root of 12909963 is about 3593.0436958100. The cubic root of 12909963 is about 234.5893719353.

The spelling of 12909963 in words is "twelve million, nine hundred nine thousand, nine hundred sixty-three".