8957666 has 4 divisors (see below), whose sum is σ = 13436502. Its totient is φ = 4478832.

The previous prime is 8957653. The next prime is 8957671. The reversal of 8957666 is 6667598.

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

It can be written as a sum of positive squares in only one way, i.e., 6869641 + 2088025 = 2621^2 + 1445^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8957666.

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, 2239415 + ... + 2239418.

Almost surely, 2^8957666 is an apocalyptic number.

8957666 is a deficient number, since it is larger than the sum of its proper divisors (4478836).

8957666 is a wasteful number, since it uses less digits than its factorization.

8957666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4478835.

The product of its digits is 544320, while the sum is 47.

The square root of 8957666 is about 2992.9360166900. The cubic root of 8957666 is about 207.6817278632.

The spelling of 8957666 in words is "eight million, nine hundred fifty-seven thousand, six hundred sixty-six".