64297 has 4 divisors (see below), whose sum is σ = 64980. Its totient is φ = 63616.

The previous prime is 64283. The next prime is 64301. The reversal of 64297 is 79246.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79246 = 2 ⋅39623.

It can be written as a sum of positive squares in 2 ways, for example, as 4761 + 59536 = 69^2 + 244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64297 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172 + ... + 397.

It is an arithmetic number, because the mean of its divisors is an integer number (16245).

2⁶⁴²⁹⁷ is an apocalyptic number.

It is an amenable number.

64297 is a deficient number, since it is larger than the sum of its proper divisors (683).

64297 is a wasteful number, since it uses less digits than its factorization.

64297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682.

The product of its digits is 3024, while the sum is 28.

The square root of 64297 is about 253.5685311706. The cubic root of 64297 is about 40.0617795331.

It can be divided in two parts, 64 and 297, that added together give a square (361 = 19²).

The spelling of 64297 in words is "sixty-four thousand, two hundred ninety-seven".