65824641 has 6 divisors (see below), whose sum is σ = 95080050. Its totient is φ = 43883088.

The previous prime is 65824631. The next prime is 65824651. The reversal of 65824641 is 14642856.

65824641 is a `hidden beast` number, since 6 + 5 + 8 + 2 + 4 + 641 = 666.

It is an interprime number because it is at equal distance from previous prime (65824631) and next prime (65824651).

It can be written as a sum of positive squares in only one way, i.e., 53714241 + 12110400 = 7329^2 + 3480^2 .

It is not a de Polignac number, because 65824641 - 2⁵ = 65824609 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65824596 and 65824605.

It is not an unprimeable number, because it can be changed into a prime (65824621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3656916 + ... + 3656933.

It is an arithmetic number, because the mean of its divisors is an integer number (15846675).

Almost surely, 2^65824641 is an apocalyptic number.

It is an amenable number.

65824641 is a deficient number, since it is larger than the sum of its proper divisors (29255409).

65824641 is a wasteful number, since it uses less digits than its factorization.

65824641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7313855 (or 7313852 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 65824641 is about 8113.2386258510. The cubic root of 65824641 is about 403.7657715725.

The spelling of 65824641 in words is "sixty-five million, eight hundred twenty-four thousand, six hundred forty-one".