8396947 has 8 divisors (see below), whose sum is σ = 9071216. Its totient is φ = 7726752.

The previous prime is 8396881. The next prime is 8396951. The reversal of 8396947 is 7496938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8396947 - 2⁷ = 8396819 is a prime.

It is a Duffinian number.

8396947 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8396897 and 8396906.

It is not an unprimeable number, because it can be changed into a prime (8396977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4348 + ... + 5974.

It is an arithmetic number, because the mean of its divisors is an integer number (1133902).

Almost surely, 2^8396947 is an apocalyptic number.

8396947 is a deficient number, since it is larger than the sum of its proper divisors (674269).

8396947 is a wasteful number, since it uses less digits than its factorization.

8396947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037.

The product of its digits is 326592, while the sum is 46.

The square root of 8396947 is about 2897.7486088341. The cubic root of 8396947 is about 203.2546409337.

Subtracting from 8396947 its reverse (7496938), we obtain a palindrome (900009).

The spelling of 8396947 in words is "eight million, three hundred ninety-six thousand, nine hundred forty-seven".