8287947 has 16 divisors (see below), whose sum is σ = 12420000. Its totient is φ = 5461632.

The previous prime is 8287921. The next prime is 8287991. The reversal of 8287947 is 7497828.

It is not a de Polignac number, because 8287947 - 2⁶ = 8287883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8287847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679 + ... + 4127.

It is an arithmetic number, because the mean of its divisors is an integer number (776250).

Almost surely, 2^8287947 is an apocalyptic number.

8287947 is a deficient number, since it is larger than the sum of its proper divisors (4132053).

8287947 is a wasteful number, since it uses less digits than its factorization.

8287947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3547 (or 3541 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 8287947 is about 2878.8794695159. The cubic root of 8287947 is about 202.3713311553.

The spelling of 8287947 in words is "eight million, two hundred eighty-seven thousand, nine hundred forty-seven".