8620489 has 4 divisors (see below), whose sum is σ = 8627220. Its totient is φ = 8613760.

The previous prime is 8620429. The next prime is 8620499. The reversal of 8620489 is 9840268.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5253264 + 3367225 = 2292^2 + 1835^2 .

It is a cyclic number.

It is not a de Polignac number, because 8620489 - 2⁷ = 8620361 is a prime.

It is a Duffinian number.

8620489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8620429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 784 + ... + 4225.

It is an arithmetic number, because the mean of its divisors is an integer number (2156805).

Almost surely, 2^8620489 is an apocalyptic number.

It is an amenable number.

8620489 is a deficient number, since it is larger than the sum of its proper divisors (6731).

8620489 is a wasteful number, since it uses less digits than its factorization.

8620489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6730.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 8620489 is about 2936.0669270301. The cubic root of 8620489 is about 205.0425372765.

The spelling of 8620489 in words is "eight million, six hundred twenty thousand, four hundred eighty-nine".