64453841 has 2 divisors, whose sum is σ = 64453842. Its totient is φ = 64453840.

The previous prime is 64453819. The next prime is 64453859. The reversal of 64453841 is 14835446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59613841 + 4840000 = 7721^2 + 2200^2 .

It is a cyclic number.

It is not a de Polignac number, because 64453841 - 2¹⁸ = 64191697 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (64453891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32226920 + 32226921.

It is an arithmetic number, because the mean of its divisors is an integer number (32226921).

Almost surely, 2^64453841 is an apocalyptic number.

It is an amenable number.

64453841 is a deficient number, since it is larger than the sum of its proper divisors (1).

64453841 is an equidigital number, since it uses as much as digits as its factorization.

64453841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 35.

The square root of 64453841 is about 8028.3149539614. The cubic root of 64453841 is about 400.9432759112.

The spelling of 64453841 in words is "sixty-four million, four hundred fifty-three thousand, eight hundred forty-one".