11634643 has 2 divisors, whose sum is σ = 11634644. Its totient is φ = 11634642.

The previous prime is 11634629. The next prime is 11634653. The reversal of 11634643 is 34643611.

It is a strong prime.

It is an emirp because it is prime and its reverse (34643611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11634643 - 2¹⁷ = 11503571 is a prime.

It is not a weakly prime, because it can be changed into another prime (11634653) 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 as a sum of consecutive naturals, namely, 5817321 + 5817322.

It is an arithmetic number, because the mean of its divisors is an integer number (5817322).

Almost surely, 2^11634643 is an apocalyptic number.

11634643 is a deficient number, since it is larger than the sum of its proper divisors (1).

11634643 is an equidigital number, since it uses as much as digits as its factorization.

11634643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 11634643 is about 3410.9592492435. The cubic root of 11634643 is about 226.5953642029.

The spelling of 11634643 in words is "eleven million, six hundred thirty-four thousand, six hundred forty-three".