64304197 has 2 divisors, whose sum is σ = 64304198. Its totient is φ = 64304196.

The previous prime is 64304179. The next prime is 64304213. The reversal of 64304197 is 79140346.

It is a happy number.

64304197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (64304179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63504961 + 799236 = 7969^2 + 894^2 .

It is a cyclic number.

It is not a de Polignac number, because 64304197 - 2⁷ = 64304069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64304147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32152098 + 32152099.

It is an arithmetic number, because the mean of its divisors is an integer number (32152099).

Almost surely, 2^64304197 is an apocalyptic number.

It is an amenable number.

64304197 is a deficient number, since it is larger than the sum of its proper divisors (1).

64304197 is an equidigital number, since it uses as much as digits as its factorization.

64304197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 64304197 is about 8018.9897742796. The cubic root of 64304197 is about 400.6327423151.

The spelling of 64304197 in words is "sixty-four million, three hundred four thousand, one hundred ninety-seven".