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8868987 = 33328481
BaseRepresentation
bin100001110101…
…010001111011
3121200120222000
4201311101323
54232301422
6514032043
7135246051
oct41652173
917616860
108868987
115008446
122b78623
131ab6b2a
14126c1d1
15ba2cac
hex87547b

8868987 has 8 divisors (see below), whose sum is σ = 13139280. Its totient is φ = 5912640.

The previous prime is 8868971. The next prime is 8869009. The reversal of 8868987 is 7898688.

It is not a de Polignac number, because 8868987 - 24 = 8868971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8868907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164214 + ... + 164267.

It is an arithmetic number, because the mean of its divisors is an integer number (1642410).

Almost surely, 28868987 is an apocalyptic number.

8868987 is a deficient number, since it is larger than the sum of its proper divisors (4270293).

8868987 is a wasteful number, since it uses less digits than its factorization.

8868987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328490 (or 328484 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 54.

The square root of 8868987 is about 2978.0844514553. The cubic root of 8868987 is about 206.9941187155.

Subtracting from 8868987 its reverse (7898688), we obtain a cube (970299 = 993).

The spelling of 8868987 in words is "eight million, eight hundred sixty-eight thousand, nine hundred eighty-seven".

Divisors: 1 3 9 27 328481 985443 2956329 8868987