8947873 has 4 divisors (see below), whose sum is σ = 9761328. Its totient is φ = 8134420.

The previous prime is 8947853. The next prime is 8947889. The reversal of 8947873 is 3787498.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8947873 - 2⁹ = 8947361 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406711 + ... + 406732.

It is an arithmetic number, because the mean of its divisors is an integer number (2440332).

Almost surely, 2^8947873 is an apocalyptic number.

It is an amenable number.

8947873 is a deficient number, since it is larger than the sum of its proper divisors (813455).

8947873 is a wasteful number, since it uses less digits than its factorization.

8947873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813454.

The product of its digits is 338688, while the sum is 46.

The square root of 8947873 is about 2991.2995503627. The cubic root of 8947873 is about 207.6060173386.

The spelling of 8947873 in words is "eight million, nine hundred forty-seven thousand, eight hundred seventy-three".