667006701 has 4 divisors (see below), whose sum is σ = 889342272. Its totient is φ = 444671132.

The previous prime is 667006687. The next prime is 667006709. The reversal of 667006701 is 107600766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667006701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667006709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111167781 + ... + 111167786.

It is an arithmetic number, because the mean of its divisors is an integer number (222335568).

Almost surely, 2^667006701 is an apocalyptic number.

It is an amenable number.

667006701 is a deficient number, since it is larger than the sum of its proper divisors (222335571).

667006701 is a wasteful number, since it uses less digits than its factorization.

667006701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222335570.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 667006701 is about 25826.4728718422. The cubic root of 667006701 is about 873.7289631673.

The spelling of 667006701 in words is "six hundred sixty-seven million, six thousand, seven hundred one".