11643461 has 4 divisors (see below), whose sum is σ = 11817312. Its totient is φ = 11469612.

The previous prime is 11643449. The next prime is 11643481. The reversal of 11643461 is 16434611.

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: 16434611 = 53 ⋅310087.

It is a cyclic number.

It is not a de Polignac number, because 11643461 - 2⁶ = 11643397 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 11643461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11643421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86825 + ... + 86958.

It is an arithmetic number, because the mean of its divisors is an integer number (2954328).

Almost surely, 2^11643461 is an apocalyptic number.

It is an amenable number.

11643461 is a deficient number, since it is larger than the sum of its proper divisors (173851).

11643461 is an equidigital number, since it uses as much as digits as its factorization.

11643461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173850.

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

The square root of 11643461 is about 3412.2516026811. The cubic root of 11643461 is about 226.6525959643.

The spelling of 11643461 in words is "eleven million, six hundred forty-three thousand, four hundred sixty-one".