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BaseRepresentation
bin1111111101110001
310022200222
433331301
54043033
61222425
7361436
oct177561
9108628
1065393
1145149
1231a15
13239c3
1419b8d
1514598
hexff71

65393 has 2 divisors, whose sum is σ = 65394. Its totient is φ = 65392.

The previous prime is 65381. The next prime is 65407. The reversal of 65393 is 39356.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44944 + 20449 = 212^2 + 143^2 .

It is a cyclic number.

It is not a de Polignac number, because 65393 - 212 = 61297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (65323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32696 + 32697.

It is an arithmetic number, because the mean of its divisors is an integer number (32697).

265393 is an apocalyptic number.

It is an amenable number.

65393 is a deficient number, since it is larger than the sum of its proper divisors (1).

65393 is an equidigital number, since it uses as much as digits as its factorization.

65393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2430, while the sum is 26.

The square root of 65393 is about 255.7205506016. The cubic root of 65393 is about 40.2881279078.

The spelling of 65393 in words is "sixty-five thousand, three hundred ninety-three".