8745047 has 4 divisors (see below), whose sum is σ = 8752416. Its totient is φ = 8737680.

The previous prime is 8745031. The next prime is 8745067. The reversal of 8745047 is 7405478.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8745047 - 2⁴ = 8745031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8744998 and 8745016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8745017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1454 + ... + 4427.

It is an arithmetic number, because the mean of its divisors is an integer number (2188104).

Almost surely, 2^8745047 is an apocalyptic number.

8745047 is a deficient number, since it is larger than the sum of its proper divisors (7369).

8745047 is a wasteful number, since it uses less digits than its factorization.

8745047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7368.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 8745047 is about 2957.2025632344. The cubic root of 8745047 is about 206.0253762687.

The spelling of 8745047 in words is "eight million, seven hundred forty-five thousand, forty-seven".