8920489 has 2 divisors, whose sum is σ = 8920490. Its totient is φ = 8920488.

The previous prime is 8920463. The next prime is 8920517. The reversal of 8920489 is 9840298.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5253264 + 3667225 = 2292^2 + 1915^2 .

It is a cyclic number.

It is not a de Polignac number, because 8920489 - 2¹³ = 8912297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8920889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4460244 + 4460245.

It is an arithmetic number, because the mean of its divisors is an integer number (4460245).

Almost surely, 2^8920489 is an apocalyptic number.

It is an amenable number.

8920489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8920489 is an equidigital number, since it uses as much as digits as its factorization.

8920489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 8920489 is about 2986.7187681467. The cubic root of 8920489 is about 207.3940156489.

It can be divided in two parts, 8920 and 489, that added together give a square (9409 = 97²).

The spelling of 8920489 in words is "eight million, nine hundred twenty thousand, four hundred eighty-nine".