667948803 has 16 divisors (see below), whose sum is σ = 897684480. Its totient is φ = 441770976.

The previous prime is 667948741. The next prime is 667948823. The reversal of 667948803 is 308849766.

It is not a de Polignac number, because 667948803 - 2²¹ = 665851651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667948823) 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 15 ways as a sum of consecutive naturals, for example, 209326 + ... + 212492.

It is an arithmetic number, because the mean of its divisors is an integer number (56105280).

Almost surely, 2^667948803 is an apocalyptic number.

667948803 is a deficient number, since it is larger than the sum of its proper divisors (229735677).

667948803 is a wasteful number, since it uses less digits than its factorization.

667948803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 667948803 is about 25844.7055119612. The cubic root of 667948803 is about 874.1401307324.

The spelling of 667948803 in words is "six hundred sixty-seven million, nine hundred forty-eight thousand, eight hundred three".