11877665 has 8 divisors (see below), whose sum is σ = 14286888. Its totient is φ = 9479680.

The previous prime is 11877653. The next prime is 11877667. The reversal of 11877665 is 56677811.

11877665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1014049 + 10863616 = 1007^2 + 3296^2 .

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

It is not a de Polignac number, because 11877665 - 2⁶ = 11877601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11877667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272 + ... + 4881.

It is an arithmetic number, because the mean of its divisors is an integer number (1785861).

Almost surely, 2^11877665 is an apocalyptic number.

It is an amenable number.

11877665 is a deficient number, since it is larger than the sum of its proper divisors (2409223).

11877665 is an equidigital number, since it uses as much as digits as its factorization.

11877665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5619.

The product of its digits is 70560, while the sum is 41.

The square root of 11877665 is about 3446.3988451716. The cubic root of 11877665 is about 228.1621973497.

The spelling of 11877665 in words is "eleven million, eight hundred seventy-seven thousand, six hundred sixty-five".