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8987047 is a prime number
BaseRepresentation
bin100010010010…
…000110100111
3121220120220121
4202102012213
54300041142
6520342411
7136250206
oct42220647
917816817
108987047
115089113
123014a07
131b287a4
14129d23d
15bc7c67
hex8921a7

8987047 has 2 divisors, whose sum is σ = 8987048. Its totient is φ = 8987046.

The previous prime is 8987029. The next prime is 8987093. The reversal of 8987047 is 7407898.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8987047 - 27 = 8986919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8986994 and 8987012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8987347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4493523 + 4493524.

It is an arithmetic number, because the mean of its divisors is an integer number (4493524).

Almost surely, 28987047 is an apocalyptic number.

8987047 is a deficient number, since it is larger than the sum of its proper divisors (1).

8987047 is an equidigital number, since it uses as much as digits as its factorization.

8987047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 8987047 is about 2997.8403893470. The cubic root of 8987047 is about 207.9085442981.

The spelling of 8987047 in words is "eight million, nine hundred eighty-seven thousand, forty-seven".