11687011 has 8 divisors (see below), whose sum is σ = 13556480. Its totient is φ = 9867528.

The previous prime is 11686999. The next prime is 11687057. The reversal of 11687011 is 11078611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11687011 - 2⁵ = 11686979 is a prime.

It is a super-2 number, since 2×11687011² = 273172452228242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11687111) 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 7 ways as a sum of consecutive naturals, for example, 11991 + ... + 12928.

It is an arithmetic number, because the mean of its divisors is an integer number (1694560).

Almost surely, 2^11687011 is an apocalyptic number.

11687011 is a deficient number, since it is larger than the sum of its proper divisors (1869469).

11687011 is an equidigital number, since it uses as much as digits as its factorization.

11687011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24993.

The product of its (nonzero) digits is 336, while the sum is 25.

The square root of 11687011 is about 3418.6270636032. The cubic root of 11687011 is about 226.9348270406.

Subtracting from 11687011 its reverse (11078611), we obtain a square (608400 = 780²).

The spelling of 11687011 in words is "eleven million, six hundred eighty-seven thousand, eleven".