8820489 has 4 divisors (see below), whose sum is σ = 11760656. Its totient is φ = 5880324.

The previous prime is 8820481. The next prime is 8820499. The reversal of 8820489 is 9840288.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8820489 - 2³ = 8820481 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8820481) 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, 1470079 + ... + 1470084.

It is an arithmetic number, because the mean of its divisors is an integer number (2940164).

Almost surely, 2^8820489 is an apocalyptic number.

It is an amenable number.

8820489 is a deficient number, since it is larger than the sum of its proper divisors (2940167).

8820489 is a wasteful number, since it uses less digits than its factorization.

8820489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940166.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 8820489 is about 2969.9308072748. The cubic root of 8820489 is about 206.6161291042.

The spelling of 8820489 in words is "eight million, eight hundred twenty thousand, four hundred eighty-nine".