8715047 has 4 divisors (see below), whose sum is σ = 9507336. Its totient is φ = 7922760.

The previous prime is 8715041. The next prime is 8715059. The reversal of 8715047 is 7405178.

Added to its reverse (7405178) it gives a square (16120225 = 4015²).

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8715047 - 2⁶ = 8714983 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 (8715041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396128 + ... + 396149.

It is an arithmetic number, because the mean of its divisors is an integer number (2376834).

Almost surely, 2^8715047 is an apocalyptic number.

8715047 is a deficient number, since it is larger than the sum of its proper divisors (792289).

8715047 is a wasteful number, since it uses less digits than its factorization.

8715047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792288.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 8715047 is about 2952.1258442011. The cubic root of 8715047 is about 205.7895154240.

Adding to 8715047 its reverse (7405178), we get a square (16120225 = 4015²).

The spelling of 8715047 in words is "eight million, seven hundred fifteen thousand, forty-seven".