8280985 has 8 divisors (see below), whose sum is σ = 10125000. Its totient is φ = 6499584.

The previous prime is 8280971. The next prime is 8281003. The reversal of 8280985 is 5890828.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1990921 + 6290064 = 1411^2 + 2508^2 .

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 8280985 - 2¹¹ = 8278937 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15360 + ... + 15889.

It is an arithmetic number, because the mean of its divisors is an integer number (1265625).

Almost surely, 2^8280985 is an apocalyptic number.

It is an amenable number.

8280985 is a deficient number, since it is larger than the sum of its proper divisors (1844015).

8280985 is a wasteful number, since it uses less digits than its factorization.

8280985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31307.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 8280985 is about 2877.6700644792. The cubic root of 8280985 is about 202.3146502952.

The spelling of 8280985 in words is "eight million, two hundred eighty thousand, nine hundred eighty-five".