667026706 has 8 divisors (see below), whose sum is σ = 1001219184. Its totient is φ = 333286980.

The previous prime is 667026653. The next prime is 667026719. The reversal of 667026706 is 607620766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109480 + ... + 115411.

It is an arithmetic number, because the mean of its divisors is an integer number (125152398).

Almost surely, 2^667026706 is an apocalyptic number.

667026706 is a deficient number, since it is larger than the sum of its proper divisors (334192478).

667026706 is a wasteful number, since it uses less digits than its factorization.

667026706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226376.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 667026706 is about 25826.8601653395. The cubic root of 667026706 is about 873.7376980987.

The spelling of 667026706 in words is "six hundred sixty-seven million, twenty-six thousand, seven hundred six".