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8554489 is a prime number
BaseRepresentation
bin100000101000…
…011111111001
3121002121112221
4200220133321
54142220424
6503204041
7132466126
oct40503771
917077487
108554489
114913129
122a46621
131a06938
1411c974d
15b3e9e4
hex8287f9

8554489 has 2 divisors, whose sum is σ = 8554490. Its totient is φ = 8554488.

The previous prime is 8554487. The next prime is 8554501. The reversal of 8554489 is 9844558.

It is a happy number.

8554489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6718464 + 1836025 = 2592^2 + 1355^2 .

It is a cyclic number.

It is not a de Polignac number, because 8554489 - 21 = 8554487 is a prime.

It is a super-2 number, since 2×85544892 = 146358564102242, which contains 22 as substring.

Together with 8554487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8554487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4277244 + 4277245.

It is an arithmetic number, because the mean of its divisors is an integer number (4277245).

Almost surely, 28554489 is an apocalyptic number.

It is an amenable number.

8554489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8554489 is an equidigital number, since it uses as much as digits as its factorization.

8554489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 230400, while the sum is 43.

The square root of 8554489 is about 2924.8058055194. The cubic root of 8554489 is about 204.5179153886.

The spelling of 8554489 in words is "eight million, five hundred fifty-four thousand, four hundred eighty-nine".