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8981087 is a prime number
BaseRepresentation
bin100010010000…
…101001011111
3121220021201212
4202100221133
54244343322
6520255035
7136223633
oct42205137
917807655
108981087
115084695
12301147b
131b25b6b
14129adc3
15bc60e2
hex890a5f

8981087 has 2 divisors, whose sum is σ = 8981088. Its totient is φ = 8981086.

The previous prime is 8981057. The next prime is 8981099. The reversal of 8981087 is 7801898.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8981087 - 216 = 8915551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8981057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4490543 + 4490544.

It is an arithmetic number, because the mean of its divisors is an integer number (4490544).

Almost surely, 28981087 is an apocalyptic number.

8981087 is a deficient number, since it is larger than the sum of its proper divisors (1).

8981087 is an equidigital number, since it uses as much as digits as its factorization.

8981087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 41.

The square root of 8981087 is about 2996.8461755652. The cubic root of 8981087 is about 207.8625741017.

The spelling of 8981087 in words is "eight million, nine hundred eighty-one thousand, eighty-seven".