640060003 has 8 divisors (see below), whose sum is σ = 717119280. Its totient is φ = 566146080.

The previous prime is 640059991. The next prime is 640060021. The reversal of 640060003 is 300060046.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 640060003 - 2⁹ = 640059491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (640060063) 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 7 ways as a sum of consecutive naturals, for example, 785908 + ... + 786721.

It is an arithmetic number, because the mean of its divisors is an integer number (89639910).

Almost surely, 2^640060003 is an apocalyptic number.

640060003 is a deficient number, since it is larger than the sum of its proper divisors (77059277).

640060003 is a wasteful number, since it uses less digits than its factorization.

640060003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572677.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 640060003 is about 25299.4071669674. The cubic root of 640060003 is about 861.8008069513.

The spelling of 640060003 in words is "six hundred forty million, sixty thousand, three".