64782841 has 2 divisors, whose sum is σ = 64782842. Its totient is φ = 64782840.

The previous prime is 64782803. The next prime is 64782853. The reversal of 64782841 is 14828746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46635241 + 18147600 = 6829^2 + 4260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64782841 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64782794 and 64782803.

It is not a weakly prime, because it can be changed into another prime (64782871) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32391420 + 32391421.

It is an arithmetic number, because the mean of its divisors is an integer number (32391421).

Almost surely, 2^64782841 is an apocalyptic number.

It is an amenable number.

64782841 is a deficient number, since it is larger than the sum of its proper divisors (1).

64782841 is an equidigital number, since it uses as much as digits as its factorization.

64782841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86016, while the sum is 40.

The square root of 64782841 is about 8048.7788514780. The cubic root of 64782841 is about 401.6243138331.

The spelling of 64782841 in words is "sixty-four million, seven hundred eighty-two thousand, eight hundred forty-one".