8260666 has 4 divisors (see below), whose sum is σ = 12391002. Its totient is φ = 4130332.

The previous prime is 8260643. The next prime is 8260667. The reversal of 8260666 is 6660628.

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., 8208225 + 52441 = 2865^2 + 229^2 .

It is not an unprimeable number, because it can be changed into a prime (8260667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2065165 + ... + 2065168.

Almost surely, 2^8260666 is an apocalyptic number.

8260666 is a deficient number, since it is larger than the sum of its proper divisors (4130336).

8260666 is a wasteful number, since it uses less digits than its factorization.

8260666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130335.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 8260666 is about 2874.1374358231. The cubic root of 8260666 is about 202.1490420489.

The spelling of 8260666 in words is "eight million, two hundred sixty thousand, six hundred sixty-six".