11662705 has 4 divisors (see below), whose sum is σ = 13995252. Its totient is φ = 9330160.

The previous prime is 11662687. The next prime is 11662711. The reversal of 11662705 is 50726611.

11662705 is digitally balanced in base 3, 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 can be written as a sum of positive squares in 2 ways, for example, as 7789681 + 3873024 = 2791^2 + 1968^2 .

It is not a de Polignac number, because 11662705 - 2⁷ = 11662577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1166266 + ... + 1166275.

It is an arithmetic number, because the mean of its divisors is an integer number (3498813).

Almost surely, 2^11662705 is an apocalyptic number.

It is an amenable number.

11662705 is a deficient number, since it is larger than the sum of its proper divisors (2332547).

11662705 is an equidigital number, since it uses as much as digits as its factorization.

11662705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332546.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 11662705 is about 3415.0702774614. The cubic root of 11662705 is about 226.7773956779. Note that the first 3 decimals are identical.

The spelling of 11662705 in words is "eleven million, six hundred sixty-two thousand, seven hundred five".