667311701 has 8 divisors (see below), whose sum is σ = 767500800. Its totient is φ = 568337328.

The previous prime is 667311683. The next prime is 667311703. The reversal of 667311701 is 107113766.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667311701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667311703) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 302501 + ... + 304698.

It is an arithmetic number, because the mean of its divisors is an integer number (95937600).

Almost surely, 2^667311701 is an apocalyptic number.

It is an amenable number.

667311701 is a deficient number, since it is larger than the sum of its proper divisors (100189099).

667311701 is a wasteful number, since it uses less digits than its factorization.

667311701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607363.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 667311701 is about 25832.3769909004. The cubic root of 667311701 is about 873.8621186140.

The spelling of 667311701 in words is "six hundred sixty-seven million, three hundred eleven thousand, seven hundred one".