11662867 has 4 divisors (see below), whose sum is σ = 12348936. Its totient is φ = 10976800.

The previous prime is 11662853. The next prime is 11662873. The reversal of 11662867 is 76826611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76826611 = 2221 ⋅34591.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11662867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11662837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343009 + ... + 343042.

It is an arithmetic number, because the mean of its divisors is an integer number (3087234).

Almost surely, 2^11662867 is an apocalyptic number.

11662867 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11662867 is a deficient number, since it is larger than the sum of its proper divisors (686069).

11662867 is an equidigital number, since it uses as much as digits as its factorization.

11662867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686068.

The product of its digits is 24192, while the sum is 37.

The square root of 11662867 is about 3415.0939957782. The cubic root of 11662867 is about 226.7784456849.

The spelling of 11662867 in words is "eleven million, six hundred sixty-two thousand, eight hundred sixty-seven".