8490 has 16 divisors (see below), whose sum is σ = 20448. Its totient is φ = 2256.

The previous prime is 8467. The next prime is 8501. The reversal of 8490 is 948.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112 + ... + 171.

It is an arithmetic number, because the mean of its divisors is an integer number (1278).

2⁸⁴⁹⁰ is an apocalyptic number.

8490 is an abundant number, since it is smaller than the sum of its proper divisors (11958).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10224).

8490 is a wasteful number, since it uses less digits than its factorization.

8490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293.

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

The square root of 8490 is about 92.1411959983. The cubic root of 8490 is about 20.4002691237.

Adding to 8490 its product of nonzero digits (288), we get a palindrome (8778).

The spelling of 8490 in words is "eight thousand, four hundred ninety".