64247041 has 4 divisors (see below), whose sum is σ = 65814084. Its totient is φ = 62680000.

The previous prime is 64247039. The next prime is 64247083. The reversal of 64247041 is 14074246.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14074246 = 2 ⋅7037123.

It can be written as a sum of positive squares in 2 ways, for example, as 6426225 + 57820816 = 2535^2 + 7604^2 .

It is a cyclic number.

It is not a de Polignac number, because 64247041 - 2¹ = 64247039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64247011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783460 + ... + 783541.

It is an arithmetic number, because the mean of its divisors is an integer number (16453521).

Almost surely, 2^64247041 is an apocalyptic number.

It is an amenable number.

64247041 is a deficient number, since it is larger than the sum of its proper divisors (1567043).

64247041 is a wasteful number, since it uses less digits than its factorization.

64247041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567042.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 64247041 is about 8015.4251914668. The cubic root of 64247041 is about 400.5140079566.

The spelling of 64247041 in words is "sixty-four million, two hundred forty-seven thousand, forty-one".