64240003 has 4 divisors (see below), whose sum is σ = 64304680. Its totient is φ = 64175328.

The previous prime is 64239997. The next prime is 64240013. The reversal of 64240003 is 30004246.

64240003 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, and also an emirpimes, since its reverse is a distinct semiprime: 30004246 = 2 ⋅15002123.

It is a cyclic number.

It is not a de Polignac number, because 64240003 - 2⁹ = 64239491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64240013) 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 in 3 ways as a sum of consecutive naturals, for example, 30825 + ... + 32842.

It is an arithmetic number, because the mean of its divisors is an integer number (16076170).

Almost surely, 2^64240003 is an apocalyptic number.

64240003 is a deficient number, since it is larger than the sum of its proper divisors (64677).

64240003 is a wasteful number, since it uses less digits than its factorization.

64240003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64676.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 64240003 is about 8014.9861509550. The cubic root of 64240003 is about 400.4993825333.

Adding to 64240003 its reverse (30004246), we get a palindrome (94244249).

The spelling of 64240003 in words is "sixty-four million, two hundred forty thousand, three".