664036003 has 8 divisors (see below), whose sum is σ = 682358400. Its totient is φ = 645733440.

The previous prime is 664035991. The next prime is 664036007. The reversal of 664036003 is 300630466.

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 664036003 - 2¹³ = 664027811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664036007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85023 + ... + 92503.

It is an arithmetic number, because the mean of its divisors is an integer number (85294800).

Almost surely, 2^664036003 is an apocalyptic number.

664036003 is a deficient number, since it is larger than the sum of its proper divisors (18322397).

664036003 is a wasteful number, since it uses less digits than its factorization.

664036003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9917.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 664036003 is about 25768.8960376653. The cubic root of 664036003 is about 872.4299018404.

Adding to 664036003 its reverse (300630466), we get a palindrome (964666469).

The spelling of 664036003 in words is "six hundred sixty-four million, thirty-six thousand, three".