64304213 has 2 divisors, whose sum is σ = 64304214. Its totient is φ = 64304212.

The previous prime is 64304197. The next prime is 64304237. The reversal of 64304213 is 31240346.

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., 46267204 + 18037009 = 6802^2 + 4247^2 .

It is a cyclic number.

It is not a de Polignac number, because 64304213 - 2⁴ = 64304197 is a prime.

It is a Chen prime.

It is equal to p_3802037 and since 64304213 and 3802037 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64304243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32152106 + 32152107.

It is an arithmetic number, because the mean of its divisors is an integer number (32152107).

Almost surely, 2^64304213 is an apocalyptic number.

It is an amenable number.

64304213 is a deficient number, since it is larger than the sum of its proper divisors (1).

64304213 is an equidigital number, since it uses as much as digits as its factorization.

64304213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 64304213 is about 8018.9907719114. The cubic root of 64304213 is about 400.6327755433.

Adding to 64304213 its reverse (31240346), we get a palindrome (95544559).

The spelling of 64304213 in words is "sixty-four million, three hundred four thousand, two hundred thirteen".