11787043 has 4 divisors (see below), whose sum is σ = 11795608. Its totient is φ = 11778480.

The previous prime is 11787007. The next prime is 11787067. The reversal of 11787043 is 34078711.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34078711 = 907 ⋅37573.

It is a cyclic number.

It is not a de Polignac number, because 11787043 - 2¹⁷ = 11655971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11786996 and 11787014.

It is not an unprimeable number, because it can be changed into a prime (11787073) 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, 1698 + ... + 5143.

It is an arithmetic number, because the mean of its divisors is an integer number (2948902).

Almost surely, 2^11787043 is an apocalyptic number.

11787043 is a deficient number, since it is larger than the sum of its proper divisors (8565).

11787043 is an equidigital number, since it uses as much as digits as its factorization.

11787043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8564.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 11787043 is about 3433.2263251933. The cubic root of 11787043 is about 227.5804521642.

The spelling of 11787043 in words is "eleven million, seven hundred eighty-seven thousand, forty-three".