8490000 has 100 divisors (see below), whose sum is σ = 27503696. Its totient is φ = 2256000.

The previous prime is 8489969. The next prime is 8490019. The reversal of 8490000 is 948.

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29859 + ... + 30141.

Almost surely, 2^8490000 is an apocalyptic number.

8490000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8490000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13751848).

8490000 is an abundant number, since it is smaller than the sum of its proper divisors (19013696).

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

8490000 is a wasteful number, since it uses less digits than its factorization.

8490000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 8490000 is about 2913.7604568667. The cubic root of 8490000 is about 204.0026912371.

Adding to 8490000 its reverse (948), we get a palindrome (8490948).

The spelling of 8490000 in words is "eight million, four hundred ninety thousand".