8994947 has 4 divisors (see below), whose sum is σ = 9686880. Its totient is φ = 8303016.

The previous prime is 8994943. The next prime is 8995003. The reversal of 8994947 is 7494998.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8994947 - 2² = 8994943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8994895 and 8994904.

It is not an unprimeable number, because it can be changed into a prime (8994943) 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, 345947 + ... + 345972.

It is an arithmetic number, because the mean of its divisors is an integer number (2421720).

Almost surely, 2^8994947 is an apocalyptic number.

8994947 is a deficient number, since it is larger than the sum of its proper divisors (691933).

8994947 is a wasteful number, since it uses less digits than its factorization.

8994947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691932.

The product of its digits is 653184, while the sum is 50.

The square root of 8994947 is about 2999.1577150927. The cubic root of 8994947 is about 207.9694466340.

The spelling of 8994947 in words is "eight million, nine hundred ninety-four thousand, nine hundred forty-seven".