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47639 is a prime number
BaseRepresentation
bin1011101000010111
32102100102
423220113
53011024
61004315
7255614
oct135027
972312
1047639
1132879
122369b
13188b7
141350b
15e1ae
hexba17

47639 has 2 divisors, whose sum is σ = 47640. Its totient is φ = 47638.

The previous prime is 47629. The next prime is 47653. The reversal of 47639 is 93674.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47639 - 24 = 47623 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 4 + 7 + 66 + 35 + 93 .

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23819 + 23820.

It is an arithmetic number, because the mean of its divisors is an integer number (23820).

247639 is an apocalyptic number.

47639 is a deficient number, since it is larger than the sum of its proper divisors (1).

47639 is an equidigital number, since it uses as much as digits as its factorization.

47639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 29.

The square root of 47639 is about 218.2636020962. The cubic root of 47639 is about 36.2510740863.

It can be divided in two parts, 476 and 39, that added together give a palindrome (515).

The spelling of 47639 in words is "forty-seven thousand, six hundred thirty-nine".