664753803 has 32 divisors (see below), whose sum is σ = 1044612096. Its totient is φ = 368074368.

The previous prime is 664753781. The next prime is 664753811. The reversal of 664753803 is 308357466.

It is not a de Polignac number, because 664753803 - 2¹⁰ = 664752779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664753303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202725 + ... + 205977.

It is an arithmetic number, because the mean of its divisors is an integer number (32644128).

Almost surely, 2^664753803 is an apocalyptic number.

664753803 is a deficient number, since it is larger than the sum of its proper divisors (379858293).

664753803 is a wasteful number, since it uses less digits than its factorization.

664753803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563.

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 664753803 is about 25782.8199194735. The cubic root of 664753803 is about 872.7441441765.

The spelling of 664753803 in words is "six hundred sixty-four million, seven hundred fifty-three thousand, eight hundred three".