8947863 has 12 divisors (see below), whose sum is σ = 13370760. Its totient is φ = 5759376.

The previous prime is 8947853. The next prime is 8947889. The reversal of 8947863 is 3687498.

It is a happy number.

It is not a de Polignac number, because 8947863 - 2¹⁶ = 8882327 is a prime.

8947863 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8947823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16881 + ... + 17402.

It is an arithmetic number, because the mean of its divisors is an integer number (1114230).

Almost surely, 2^8947863 is an apocalyptic number.

8947863 is a deficient number, since it is larger than the sum of its proper divisors (4422897).

8947863 is a wasteful number, since it uses less digits than its factorization.

8947863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34318 (or 34315 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 8947863 is about 2991.2978788479. The cubic root of 8947863 is about 207.6059399996.

The spelling of 8947863 in words is "eight million, nine hundred forty-seven thousand, eight hundred sixty-three".