8374561 has 4 divisors (see below), whose sum is σ = 9018772. Its totient is φ = 7730352.

The previous prime is 8374559. The next prime is 8374567. The reversal of 8374561 is 1654738.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1654738 = 2 ⋅827369.

It can be written as a sum of positive squares in 2 ways, for example, as 360000 + 8014561 = 600^2 + 2831^2 .

It is a cyclic number.

It is not a de Polignac number, because 8374561 - 2¹ = 8374559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8374567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322086 + ... + 322111.

It is an arithmetic number, because the mean of its divisors is an integer number (2254693).

Almost surely, 2^8374561 is an apocalyptic number.

It is an amenable number.

8374561 is a deficient number, since it is larger than the sum of its proper divisors (644211).

8374561 is a wasteful number, since it uses less digits than its factorization.

8374561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644210.

The product of its digits is 20160, while the sum is 34.

The square root of 8374561 is about 2893.8833770558. The cubic root of 8374561 is about 203.0738566625.

The spelling of 8374561 in words is "eight million, three hundred seventy-four thousand, five hundred sixty-one".