8772257 has 4 divisors (see below), whose sum is σ = 9447060. Its totient is φ = 8097456.

The previous prime is 8772251. The next prime is 8772259. The reversal of 8772257 is 7522778.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7522778 = 2 ⋅3761389.

It can be written as a sum of positive squares in 2 ways, for example, as 3500641 + 5271616 = 1871^2 + 2296^2 .

It is a cyclic number.

It is not a de Polignac number, because 8772257 - 2⁴ = 8772241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8772257.

It is not an unprimeable number, because it can be changed into a prime (8772251) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 337382 + ... + 337407.

It is an arithmetic number, because the mean of its divisors is an integer number (2361765).

Almost surely, 2^8772257 is an apocalyptic number.

It is an amenable number.

8772257 is a deficient number, since it is larger than the sum of its proper divisors (674803).

8772257 is a wasteful number, since it uses less digits than its factorization.

8772257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674802.

The product of its digits is 54880, while the sum is 38.

The square root of 8772257 is about 2961.7996218516. The cubic root of 8772257 is about 206.2388360042.

The spelling of 8772257 in words is "eight million, seven hundred seventy-two thousand, two hundred fifty-seven".