64330297 has 2 divisors, whose sum is σ = 64330298. Its totient is φ = 64330296.

The previous prime is 64330289. The next prime is 64330319. The reversal of 64330297 is 79203346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63664441 + 665856 = 7979^2 + 816^2 .

It is a cyclic number.

It is not a de Polignac number, because 64330297 - 2³ = 64330289 is a prime.

It is a super-2 number, since 2×64330297² = 8276774224216418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64330247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32165148 + 32165149.

It is an arithmetic number, because the mean of its divisors is an integer number (32165149).

Almost surely, 2^64330297 is an apocalyptic number.

It is an amenable number.

64330297 is a deficient number, since it is larger than the sum of its proper divisors (1).

64330297 is an equidigital number, since it uses as much as digits as its factorization.

64330297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 64330297 is about 8020.6169962167. The cubic root of 64330297 is about 400.6869383639.

The spelling of 64330297 in words is "sixty-four million, three hundred thirty thousand, two hundred ninety-seven".