11478247 has 8 divisors (see below), whose sum is σ = 13258512. Its totient is φ = 9820800.

The previous prime is 11478227. The next prime is 11478317. The reversal of 11478247 is 74287411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11478247 - 2¹⁹ = 10953959 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 (11478227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30504 + ... + 30877.

It is an arithmetic number, because the mean of its divisors is an integer number (1657314).

Almost surely, 2^11478247 is an apocalyptic number.

11478247 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11478247 is a deficient number, since it is larger than the sum of its proper divisors (1780265).

11478247 is a wasteful number, since it uses less digits than its factorization.

11478247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61409.

The product of its digits is 12544, while the sum is 34.

The square root of 11478247 is about 3387.9561685476. The cubic root of 11478247 is about 225.5754619183.

The spelling of 11478247 in words is "eleven million, four hundred seventy-eight thousand, two hundred forty-seven".