65646241 has 2 divisors, whose sum is σ = 65646242. Its totient is φ = 65646240.

The previous prime is 65646233. The next prime is 65646247. The reversal of 65646241 is 14264656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45360225 + 20286016 = 6735^2 + 4504^2 .

It is a cyclic number.

It is not a de Polignac number, because 65646241 - 2³ = 65646233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65646197 and 65646206.

It is not a weakly prime, because it can be changed into another prime (65646247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32823120 + 32823121.

It is an arithmetic number, because the mean of its divisors is an integer number (32823121).

Almost surely, 2^65646241 is an apocalyptic number.

It is an amenable number.

65646241 is a deficient number, since it is larger than the sum of its proper divisors (1).

65646241 is an equidigital number, since it uses as much as digits as its factorization.

65646241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 65646241 is about 8102.2367899241. The cubic root of 65646241 is about 403.4006753360.

The spelling of 65646241 in words is "sixty-five million, six hundred forty-six thousand, two hundred forty-one".