8464890 has 64 divisors (see below), whose sum is σ = 23452416. Its totient is φ = 1915392.

The previous prime is 8464889. The next prime is 8464903. The reversal of 8464890 is 984648.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 36214 + ... + 36446.

It is an arithmetic number, because the mean of its divisors is an integer number (366444).

Almost surely, 2^8464890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8464890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11726208).

8464890 is an abundant number, since it is smaller than the sum of its proper divisors (14987526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8464890 is a wasteful number, since it uses less digits than its factorization.

8464890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 8464890 is about 2909.4484013297. The cubic root of 8464890 is about 203.8013733731.

The spelling of 8464890 in words is "eight million, four hundred sixty-four thousand, eight hundred ninety".