8747122 has 4 divisors (see below), whose sum is σ = 13120686. Its totient is φ = 4373560.

The previous prime is 8747119. The next prime is 8747159. The reversal of 8747122 is 2217478.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2217478 = 2 ⋅1108739.

It can be written as a sum of positive squares in only one way, i.e., 7403841 + 1343281 = 2721^2 + 1159^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2186779 + ... + 2186782.

Almost surely, 2^8747122 is an apocalyptic number.

8747122 is a deficient number, since it is larger than the sum of its proper divisors (4373564).

8747122 is a wasteful number, since it uses less digits than its factorization.

8747122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373563.

The product of its digits is 6272, while the sum is 31.

The square root of 8747122 is about 2957.5533807524. The cubic root of 8747122 is about 206.0416700195.

The spelling of 8747122 in words is "eight million, seven hundred forty-seven thousand, one hundred twenty-two".