11000047 has 4 divisors (see below), whose sum is σ = 11008720. Its totient is φ = 10991376.

The previous prime is 11000027. The next prime is 11000053. The reversal of 11000047 is 74000011.

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: 74000011 = 79 ⋅936709.

It is a cyclic number.

It is not a de Polignac number, because 11000047 - 2¹¹ = 10997999 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 (11000027) 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, 2022 + ... + 5107.

It is an arithmetic number, because the mean of its divisors is an integer number (2752180).

Almost surely, 2^11000047 is an apocalyptic number.

11000047 is a deficient number, since it is larger than the sum of its proper divisors (8673).

11000047 is an equidigital number, since it uses as much as digits as its factorization.

11000047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8672.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 11000047 is about 3316.6318758644. The cubic root of 11000047 is about 222.3983258052.

Adding to 11000047 its reverse (74000011), we get a palindrome (85000058).

It can be divided in two parts, 1100004 and 7, that added together give a palindrome (1100011).

The spelling of 11000047 in words is "eleven million, forty-seven", and thus it is an aban number and an uban number.