64547701 has 2 divisors, whose sum is σ = 64547702. Its totient is φ = 64547700.

The previous prime is 64547669. The next prime is 64547713. The reversal of 64547701 is 10774546.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55487601 + 9060100 = 7449^2 + 3010^2 .

It is a cyclic number.

It is not a de Polignac number, because 64547701 - 2⁵ = 64547669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64547771) 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, 32273850 + 32273851.

It is an arithmetic number, because the mean of its divisors is an integer number (32273851).

Almost surely, 2^64547701 is an apocalyptic number.

It is an amenable number.

64547701 is a deficient number, since it is larger than the sum of its proper divisors (1).

64547701 is an equidigital number, since it uses as much as digits as its factorization.

64547701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 64547701 is about 8034.1583877840. The cubic root of 64547701 is about 401.1378041853.

The spelling of 64547701 in words is "sixty-four million, five hundred forty-seven thousand, seven hundred one".