8815489 has 2 divisors, whose sum is σ = 8815490. Its totient is φ = 8815488.

The previous prime is 8815427. The next prime is 8815549. The reversal of 8815489 is 9845188.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4875264 + 3940225 = 2208^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 8815489 - 2¹³ = 8807297 is a prime.

8815489 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8815189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4407744 + 4407745.

It is an arithmetic number, because the mean of its divisors is an integer number (4407745).

Almost surely, 2^8815489 is an apocalyptic number.

It is an amenable number.

8815489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8815489 is an equidigital number, since it uses as much as digits as its factorization.

8815489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 43.

The square root of 8815489 is about 2969.0889174964. The cubic root of 8815489 is about 206.5770807811.

The spelling of 8815489 in words is "eight million, eight hundred fifteen thousand, four hundred eighty-nine".