64298305 has 4 divisors (see below), whose sum is σ = 77157972. Its totient is φ = 51438640.

The previous prime is 64298279. The next prime is 64298321. The reversal of 64298305 is 50389246.

64298305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48608784 + 15689521 = 6972^2 + 3961^2 .

It is not a de Polignac number, because 64298305 - 2⁷ = 64298177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 6429826 + ... + 6429835.

It is an arithmetic number, because the mean of its divisors is an integer number (19289493).

Almost surely, 2^64298305 is an apocalyptic number.

It is an amenable number.

64298305 is a deficient number, since it is larger than the sum of its proper divisors (12859667).

64298305 is a wasteful number, since it uses less digits than its factorization.

64298305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12859666.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 64298305 is about 8018.6223879168. The cubic root of 64298305 is about 400.6205056840.

The spelling of 64298305 in words is "sixty-four million, two hundred ninety-eight thousand, three hundred five".