Search a number
-
+
389659 is a prime number
BaseRepresentation
bin1011111001000011011
3201210111211
41133020123
544432114
612203551
73212014
oct1371033
9653454
10389659
11246836
121695b7
1310848a
14a200b
157a6c4
hex5f21b

389659 has 2 divisors, whose sum is σ = 389660. Its totient is φ = 389658.

The previous prime is 389651. The next prime is 389663. The reversal of 389659 is 956983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 389659 - 23 = 389651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (389651) 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, 194829 + 194830.

It is an arithmetic number, because the mean of its divisors is an integer number (194830).

389659 is a Friedman number, since it can be written as 5^8-969+3, using all its digits and the basic arithmetic operations.

2389659 is an apocalyptic number.

389659 is a deficient number, since it is larger than the sum of its proper divisors (1).

389659 is an equidigital number, since it uses as much as digits as its factorization.

389659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The square root of 389659 is about 624.2267216325. The cubic root of 389659 is about 73.0401355574.

The spelling of 389659 in words is "three hundred eighty-nine thousand, six hundred fifty-nine".