11634641 has 4 divisors (see below), whose sum is σ = 12009984. Its totient is φ = 11259300.

The previous prime is 11634629. The next prime is 11634643. The reversal of 11634641 is 14643611.

11634641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14643611 = 211 ⋅69401.

It is a cyclic number.

It is not a de Polignac number, because 11634641 - 2⁶ = 11634577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11634641.

It is not an unprimeable number, because it can be changed into a prime (11634643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187625 + ... + 187686.

It is an arithmetic number, because the mean of its divisors is an integer number (3002496).

Almost surely, 2^11634641 is an apocalyptic number.

It is an amenable number.

11634641 is a deficient number, since it is larger than the sum of its proper divisors (375343).

11634641 is an equidigital number, since it uses as much as digits as its factorization.

11634641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375342.

The product of its digits is 1728, while the sum is 26.

The square root of 11634641 is about 3410.9589560709. The cubic root of 11634641 is about 226.5953512190.

The spelling of 11634641 in words is "eleven million, six hundred thirty-four thousand, six hundred forty-one".