667812296 has 16 divisors (see below), whose sum is σ = 1275774300. Its totient is φ = 327605824.

The previous prime is 667812283. The next prime is 667812307. The reversal of 667812296 is 692218766.

It can be written as a sum of positive squares in 2 ways, for example, as 511212100 + 156600196 = 22610^2 + 12514^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 667812296.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 787091 + ... + 787938.

Almost surely, 2^667812296 is an apocalyptic number.

It is an amenable number.

667812296 is a deficient number, since it is larger than the sum of its proper divisors (607962004).

667812296 is a wasteful number, since it uses less digits than its factorization.

667812296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575088 (or 1575084 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 667812296 is about 25842.0644686140. The cubic root of 667812296 is about 874.0805780761.

The spelling of 667812296 in words is "six hundred sixty-seven million, eight hundred twelve thousand, two hundred ninety-six".