8289961 has 8 divisors (see below), whose sum is σ = 8655944. Its totient is φ = 7931520.

The previous prime is 8289949. The next prime is 8289997. The reversal of 8289961 is 1699828.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24336 + 8265625 = 156^2 + 2875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8289961 - 2¹⁹ = 7765673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8289901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421 + ... + 4093.

It is an arithmetic number, because the mean of its divisors is an integer number (1081993).

Almost surely, 2^8289961 is an apocalyptic number.

It is an amenable number.

8289961 is a deficient number, since it is larger than the sum of its proper divisors (365983).

8289961 is a wasteful number, since it uses less digits than its factorization.

8289961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3771.

The product of its digits is 62208, while the sum is 43.

The square root of 8289961 is about 2879.2292371397. The cubic root of 8289961 is about 202.3877221405.

The spelling of 8289961 in words is "eight million, two hundred eighty-nine thousand, nine hundred sixty-one".