8666441 has 4 divisors (see below), whose sum is σ = 9904512. Its totient is φ = 7428372.

The previous prime is 8666431. The next prime is 8666443. The reversal of 8666441 is 1446668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8666441 - 2²² = 4472137 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (8666443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619025 + ... + 619038.

It is an arithmetic number, because the mean of its divisors is an integer number (2476128).

Almost surely, 2^8666441 is an apocalyptic number.

It is an amenable number.

8666441 is a deficient number, since it is larger than the sum of its proper divisors (1238071).

8666441 is a wasteful number, since it uses less digits than its factorization.

8666441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238070.

The product of its digits is 27648, while the sum is 35.

The square root of 8666441 is about 2943.8819609488. The cubic root of 8666441 is about 205.4062220733.

The spelling of 8666441 in words is "eight million, six hundred sixty-six thousand, four hundred forty-one".