8649941 has 4 divisors (see below), whose sum is σ = 8671500. Its totient is φ = 8628384.

The previous prime is 8649937. The next prime is 8649967. The reversal of 8649941 is 1499468.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4431025 + 4218916 = 2105^2 + 2054^2 .

It is a cyclic number.

It is not a de Polignac number, because 8649941 - 2² = 8649937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8649911) 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, 10166 + ... + 10983.

It is an arithmetic number, because the mean of its divisors is an integer number (2167875).

Almost surely, 2^8649941 is an apocalyptic number.

It is an amenable number.

8649941 is a deficient number, since it is larger than the sum of its proper divisors (21559).

8649941 is a wasteful number, since it uses less digits than its factorization.

8649941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21558.

The product of its digits is 62208, while the sum is 41.

The square root of 8649941 is about 2941.0782036525. The cubic root of 8649941 is about 205.2757819139.

The spelling of 8649941 in words is "eight million, six hundred forty-nine thousand, nine hundred forty-one".