11247471 has 8 divisors (see below), whose sum is σ = 16662960. Its totient is φ = 7498296.

The previous prime is 11247469. The next prime is 11247473. The reversal of 11247471 is 17474211.

It is an interprime number because it is at equal distance from previous prime (11247469) and next prime (11247473).

It is not a de Polignac number, because 11247471 - 2¹ = 11247469 is a prime.

It is a super-3 number, since 3×11247471³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 416573 = 11247471 / (1 + 1 + 2 + 4 + 7 + 4 + 7 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11247473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208260 + ... + 208313.

It is an arithmetic number, because the mean of its divisors is an integer number (2082870).

Almost surely, 2^11247471 is an apocalyptic number.

11247471 is a deficient number, since it is larger than the sum of its proper divisors (5415489).

11247471 is an equidigital number, since it uses as much as digits as its factorization.

11247471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416582 (or 416576 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 11247471 is about 3353.7249439988. The cubic root of 11247471 is about 224.0534457398.

The spelling of 11247471 in words is "eleven million, two hundred forty-seven thousand, four hundred seventy-one".