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8997889 is a prime number
BaseRepresentation
bin100010010100…
…110000000001
3121221010210011
4202110300001
54300413024
6520504521
7136323625
oct42246001
917833704
108997889
11509627a
12301b141
131b306c4
1412a3185
15bcb094
hex894c01

8997889 has 2 divisors, whose sum is σ = 8997890. Its totient is φ = 8997888.

The previous prime is 8997883. The next prime is 8997931. The reversal of 8997889 is 9887998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7884864 + 1113025 = 2808^2 + 1055^2 .

It is a cyclic number.

It is not a de Polignac number, because 8997889 - 23 = 8997881 is a prime.

It is not a weakly prime, because it can be changed into another prime (8997881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4498944 + 4498945.

It is an arithmetic number, because the mean of its divisors is an integer number (4498945).

Almost surely, 28997889 is an apocalyptic number.

It is an amenable number.

8997889 is a deficient number, since it is larger than the sum of its proper divisors (1).

8997889 is an equidigital number, since it uses as much as digits as its factorization.

8997889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 58.

The square root of 8997889 is about 2999.6481460331. The cubic root of 8997889 is about 207.9921178596.

The spelling of 8997889 in words is "eight million, nine hundred ninety-seven thousand, eight hundred eighty-nine".