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386641 is a prime number
BaseRepresentation
bin1011110011001010001
3201122101001
41132121101
544333031
612142001
73200143
oct1363121
9648331
10386641
11244542
12167901
13106ca8
14a0c93
1579861
hex5e651

386641 has 2 divisors, whose sum is σ = 386642. Its totient is φ = 386640.

The previous prime is 386629. The next prime is 386647. The reversal of 386641 is 146683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246016 + 140625 = 496^2 + 375^2 .

It is an emirp because it is prime and its reverse (146683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 386641 - 25 = 386609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (386647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193320 + 193321.

It is an arithmetic number, because the mean of its divisors is an integer number (193321).

2386641 is an apocalyptic number.

It is an amenable number.

386641 is a deficient number, since it is larger than the sum of its proper divisors (1).

386641 is an equidigital number, since it uses as much as digits as its factorization.

386641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 28.

The square root of 386641 is about 621.8046316971. The cubic root of 386641 is about 72.8510756376.

The spelling of 386641 in words is "three hundred eighty-six thousand, six hundred forty-one".