64730801 has 2 divisors, whose sum is σ = 64730802. Its totient is φ = 64730800.

The previous prime is 64730761. The next prime is 64730803. The reversal of 64730801 is 10803746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54745201 + 9985600 = 7399^2 + 3160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64730801 is a prime.

It is a super-3 number, since 3×64730801³ (a number of 24 digits) contains 333 as substring.

It is a Sophie Germain prime.

Together with 64730803, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (64730803) 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, 32365400 + 32365401.

It is an arithmetic number, because the mean of its divisors is an integer number (32365401).

Almost surely, 2^64730801 is an apocalyptic number.

It is an amenable number.

64730801 is a deficient number, since it is larger than the sum of its proper divisors (1).

64730801 is an equidigital number, since it uses as much as digits as its factorization.

64730801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 64730801 is about 8045.5454134571. The cubic root of 64730801 is about 401.5167435366.

The spelling of 64730801 in words is "sixty-four million, seven hundred thirty thousand, eight hundred one".