8947345 has 24 divisors (see below), whose sum is σ = 12333888. Its totient is φ = 6214560.

The previous prime is 8947339. The next prime is 8947361. The reversal of 8947345 is 5437498.

It is not a de Polignac number, because 8947345 - 2⁷ = 8947217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8947298 and 8947307.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13594 + ... + 14236.

It is an arithmetic number, because the mean of its divisors is an integer number (513912).

Almost surely, 2^8947345 is an apocalyptic number.

It is an amenable number.

8947345 is a deficient number, since it is larger than the sum of its proper divisors (3386543).

8947345 is a wasteful number, since it uses less digits than its factorization.

8947345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 682 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 8947345 is about 2991.2112931052. The cubic root of 8947345 is about 207.6019337561.

The spelling of 8947345 in words is "eight million, nine hundred forty-seven thousand, three hundred forty-five".