11662791 has 16 divisors (see below), whose sum is σ = 17915904. Its totient is φ = 6610464.

The previous prime is 11662769. The next prime is 11662823. The reversal of 11662791 is 19726611.

11662791 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11662791 - 2¹⁴ = 11646407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11662711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481 + ... + 4853.

It is an arithmetic number, because the mean of its divisors is an integer number (1119744).

Almost surely, 2^11662791 is an apocalyptic number.

11662791 is a deficient number, since it is larger than the sum of its proper divisors (6253113).

11662791 is a wasteful number, since it uses less digits than its factorization.

11662791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510.

The product of its digits is 4536, while the sum is 33.

The square root of 11662791 is about 3415.0828686871. The cubic root of 11662791 is about 226.7779530902. Note that the first 3 decimals are identical.

The spelling of 11662791 in words is "eleven million, six hundred sixty-two thousand, seven hundred ninety-one".