667000730 has 32 divisors (see below), whose sum is σ = 1310940288. Its totient is φ = 242324800.

The previous prime is 667000721. The next prime is 667000753. The reversal of 667000730 is 37000766.

It is a junction number, because it is equal to n+sod(n) for n = 667000693 and 667000702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164204 + ... + 168216.

It is an arithmetic number, because the mean of its divisors is an integer number (40966884).

Almost surely, 2^667000730 is an apocalyptic number.

667000730 is a deficient number, since it is larger than the sum of its proper divisors (643939558).

667000730 is a wasteful number, since it uses less digits than its factorization.

667000730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5542.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 667000730 is about 25826.3572731425. The cubic root of 667000730 is about 873.7263559715.

The spelling of 667000730 in words is "six hundred sixty-seven million, seven hundred thirty", and thus it is an aban number.