8494861 has 4 divisors (see below), whose sum is σ = 8502300. Its totient is φ = 8487424.

The previous prime is 8494853. The next prime is 8494897. The reversal of 8494861 is 1684948.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3632836 + 4862025 = 1906^2 + 2205^2 .

It is a cyclic number.

It is not a de Polignac number, because 8494861 - 2³ = 8494853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8494841) 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, 1606 + ... + 4423.

It is an arithmetic number, because the mean of its divisors is an integer number (2125575).

Almost surely, 2^8494861 is an apocalyptic number.

It is an amenable number.

8494861 is a deficient number, since it is larger than the sum of its proper divisors (7439).

8494861 is a wasteful number, since it uses less digits than its factorization.

8494861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7438.

The product of its digits is 55296, while the sum is 40.

The square root of 8494861 is about 2914.5944829427. The cubic root of 8494861 is about 204.0416181269.

The spelling of 8494861 in words is "eight million, four hundred ninety-four thousand, eight hundred sixty-one".