11731047 has 4 divisors (see below), whose sum is σ = 15641400. Its totient is φ = 7820696.

The previous prime is 11731033. The next prime is 11731061. The reversal of 11731047 is 74013711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74013711 = 3 ⋅24671237.

It is an interprime number because it is at equal distance from previous prime (11731033) and next prime (11731061).

It is a cyclic number.

It is not a de Polignac number, because 11731047 - 2¹² = 11726951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11731007) 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, 1955172 + ... + 1955177.

It is an arithmetic number, because the mean of its divisors is an integer number (3910350).

Almost surely, 2^11731047 is an apocalyptic number.

11731047 is a deficient number, since it is larger than the sum of its proper divisors (3910353).

11731047 is an equidigital number, since it uses as much as digits as its factorization.

11731047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3910352.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 11731047 is about 3425.0616052854. The cubic root of 11731047 is about 227.2194956883.

Adding to 11731047 its reverse (74013711), we get a palindrome (85744758).

The spelling of 11731047 in words is "eleven million, seven hundred thirty-one thousand, forty-seven".