8991485 has 8 divisors (see below), whose sum is σ = 10814040. Its totient is φ = 7177024.

The previous prime is 8991449. The next prime is 8991517. The reversal of 8991485 is 5841998.

It can be written as a sum of positive squares in 4 ways, for example, as 3407716 + 5583769 = 1846^2 + 2363^2 .

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 8991485 - 2¹² = 8987389 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 779 + ... + 4311.

It is an arithmetic number, because the mean of its divisors is an integer number (1351755).

Almost surely, 2^8991485 is an apocalyptic number.

It is an amenable number.

8991485 is a deficient number, since it is larger than the sum of its proper divisors (1822555).

8991485 is a wasteful number, since it uses less digits than its factorization.

8991485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4047.

The product of its digits is 103680, while the sum is 44.

The square root of 8991485 is about 2998.5804975021. The cubic root of 8991485 is about 207.9427619255.

The spelling of 8991485 in words is "eight million, nine hundred ninety-one thousand, four hundred eighty-five".