803949663 has 16 divisors (see below), whose sum is σ = 1170095616. Its totient is φ = 486944640.

The previous prime is 803949649. The next prime is 803949667. The reversal of 803949663 is 366949308.

It is not a de Polignac number, because 803949663 - 2⁵ = 803949631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (803949667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55306 + ... + 68312.

It is an arithmetic number, because the mean of its divisors is an integer number (73130976).

Almost surely, 2^803949663 is an apocalyptic number.

803949663 is a deficient number, since it is larger than the sum of its proper divisors (366145953).

803949663 is a wasteful number, since it uses less digits than its factorization.

803949663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14894.

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 803949663 is about 28354.0061190654. The cubic root of 803949663 is about 929.8429854012.

The spelling of 803949663 in words is "eight hundred three million, nine hundred forty-nine thousand, six hundred sixty-three".