11747071 has 4 divisors (see below), whose sum is σ = 13425232. Its totient is φ = 10068912.

The previous prime is 11747053. The next prime is 11747101. The reversal of 11747071 is 17074711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17074711 = 19 ⋅898669.

It is not a de Polignac number, because 11747071 - 2¹¹ = 11745023 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 (11747371) 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, 839070 + ... + 839083.

It is an arithmetic number, because the mean of its divisors is an integer number (3356308).

Almost surely, 2^11747071 is an apocalyptic number.

11747071 is a deficient number, since it is larger than the sum of its proper divisors (1678161).

11747071 is an equidigital number, since it uses as much as digits as its factorization.

11747071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678160.

The product of its (nonzero) digits is 1372, while the sum is 28.

The square root of 11747071 is about 3427.4000350120. The cubic root of 11747071 is about 227.3229052892.

The spelling of 11747071 in words is "eleven million, seven hundred forty-seven thousand, seventy-one".