7947047 has 4 divisors (see below), whose sum is σ = 8004360. Its totient is φ = 7889736.

The previous prime is 7947013. The next prime is 7947053. The reversal of 7947047 is 7407497.

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 7947047 - 2⁸ = 7946791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7947047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7947097) 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, 28448 + ... + 28725.

It is an arithmetic number, because the mean of its divisors is an integer number (2001090).

Almost surely, 2^7947047 is an apocalyptic number.

7947047 is a deficient number, since it is larger than the sum of its proper divisors (57313).

7947047 is a wasteful number, since it uses less digits than its factorization.

7947047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57312.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 7947047 is about 2819.0507267518. The cubic root of 7947047 is about 199.5577477857.

The spelling of 7947047 in words is "seven million, nine hundred forty-seven thousand, forty-seven".