64707229 has 2 divisors, whose sum is σ = 64707230. Its totient is φ = 64707228.

The previous prime is 64707221. The next prime is 64707239. The reversal of 64707229 is 92270746.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59644729 + 5062500 = 7723^2 + 2250^2 .

It is a cyclic number.

It is not a de Polignac number, because 64707229 - 2³ = 64707221 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64707221) 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, 32353614 + 32353615.

It is an arithmetic number, because the mean of its divisors is an integer number (32353615).

Almost surely, 2^64707229 is an apocalyptic number.

It is an amenable number.

64707229 is a deficient number, since it is larger than the sum of its proper divisors (1).

64707229 is an equidigital number, since it uses as much as digits as its factorization.

64707229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 64707229 is about 8044.0803700610. The cubic root of 64707229 is about 401.4679996021.

The spelling of 64707229 in words is "sixty-four million, seven hundred seven thousand, two hundred twenty-nine".