11785863 has 4 divisors (see below), whose sum is σ = 15714488. Its totient is φ = 7857240.

The previous prime is 11785853. The next prime is 11785877. The reversal of 11785863 is 36858711.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11785863 - 2⁴ = 11785847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11785853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1964308 + ... + 1964313.

It is an arithmetic number, because the mean of its divisors is an integer number (3928622).

Almost surely, 2^11785863 is an apocalyptic number.

11785863 is a deficient number, since it is larger than the sum of its proper divisors (3928625).

11785863 is an equidigital number, since it uses as much as digits as its factorization.

11785863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928624.

The product of its digits is 40320, while the sum is 39.

The square root of 11785863 is about 3433.0544708758. The cubic root of 11785863 is about 227.5728575567.

The spelling of 11785863 in words is "eleven million, seven hundred eighty-five thousand, eight hundred sixty-three".