11677817 has 4 divisors (see below), whose sum is σ = 11752356. Its totient is φ = 11603280.

The previous prime is 11677789. The next prime is 11677871. The reversal of 11677817 is 71877611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71877611 = 13 ⋅5529047.

It can be written as a sum of positive squares in 2 ways, for example, as 4393216 + 7284601 = 2096^2 + 2699^2 .

It is a cyclic number.

It is not a de Polignac number, because 11677817 - 2⁶ = 11677753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11677217) 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 3 ways as a sum of consecutive naturals, for example, 37034 + ... + 37347.

It is an arithmetic number, because the mean of its divisors is an integer number (2938089).

Almost surely, 2^11677817 is an apocalyptic number.

It is an amenable number.

11677817 is a deficient number, since it is larger than the sum of its proper divisors (74539).

11677817 is an equidigital number, since it uses as much as digits as its factorization.

11677817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74538.

The product of its digits is 16464, while the sum is 38.

The square root of 11677817 is about 3417.2821071723. The cubic root of 11677817 is about 226.8753026631.

The spelling of 11677817 in words is "eleven million, six hundred seventy-seven thousand, eight hundred seventeen".