8899947 has 12 divisors (see below), whose sum is σ = 14692080. Its totient is φ = 5085648.

The previous prime is 8899937. The next prime is 8899949. The reversal of 8899947 is 7499988.

8899947 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8899947 - 2⁷ = 8899819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8899893 and 8899902.

It is not an unprimeable number, because it can be changed into a prime (8899949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70572 + ... + 70697.

It is an arithmetic number, because the mean of its divisors is an integer number (1224340).

Almost surely, 2^8899947 is an apocalyptic number.

8899947 is a deficient number, since it is larger than the sum of its proper divisors (5792133).

8899947 is a wasteful number, since it uses less digits than its factorization.

8899947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141282 (or 141279 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 8899947 is about 2983.2778952019. The cubic root of 8899947 is about 207.2346984395.

The spelling of 8899947 in words is "eight million, eight hundred ninety-nine thousand, nine hundred forty-seven".