664076003 has 4 divisors (see below), whose sum is σ = 666342768. Its totient is φ = 661809240.

The previous prime is 664075991. The next prime is 664076071. The reversal of 664076003 is 300670466.

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

It is a cyclic number.

It is not a de Polignac number, because 664076003 - 2⁸ = 664075747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664076603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1132943 + ... + 1133528.

It is an arithmetic number, because the mean of its divisors is an integer number (166585692).

Almost surely, 2^664076003 is an apocalyptic number.

664076003 is a deficient number, since it is larger than the sum of its proper divisors (2266765).

664076003 is a wasteful number, since it uses less digits than its factorization.

664076003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266764.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 664076003 is about 25769.6721554621. The cubic root of 664076003 is about 872.4474192115.

The spelling of 664076003 in words is "six hundred sixty-four million, seventy-six thousand, three".