8618947 has 8 divisors (see below), whose sum is σ = 8805456. Its totient is φ = 8434272.

The previous prime is 8618933. The next prime is 8618959. The reversal of 8618947 is 7498168.

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 8618947 - 2¹⁹ = 8094659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8618917) 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, 12873 + ... + 13525.

It is an arithmetic number, because the mean of its divisors is an integer number (1100682).

Almost surely, 2^8618947 is an apocalyptic number.

8618947 is a deficient number, since it is larger than the sum of its proper divisors (186509).

8618947 is a wasteful number, since it uses less digits than its factorization.

8618947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917.

The product of its digits is 96768, while the sum is 43.

The square root of 8618947 is about 2935.8043190921. The cubic root of 8618947 is about 205.0303108066.

The spelling of 8618947 in words is "eight million, six hundred eighteen thousand, nine hundred forty-seven".