11642911 has 4 divisors (see below), whose sum is σ = 13306192. Its totient is φ = 9979632.

The previous prime is 11642879. The next prime is 11642921. The reversal of 11642911 is 11924611.

11642911 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.

It is a cyclic number.

It is not a de Polignac number, because 11642911 - 2⁵ = 11642879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11642921) 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, 831630 + ... + 831643.

It is an arithmetic number, because the mean of its divisors is an integer number (3326548).

Almost surely, 2^11642911 is an apocalyptic number.

11642911 is a deficient number, since it is larger than the sum of its proper divisors (1663281).

11642911 is an equidigital number, since it uses as much as digits as its factorization.

11642911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663280.

The product of its digits is 432, while the sum is 25.

The square root of 11642911 is about 3412.1710097825. The cubic root of 11642911 is about 226.6490271260.

The spelling of 11642911 in words is "eleven million, six hundred forty-two thousand, nine hundred eleven".