667734001 has 8 divisors (see below), whose sum is σ = 731620800. Its totient is φ = 604377840.

The previous prime is 667733987. The next prime is 667734037. The reversal of 667734001 is 100437766.

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

It is not a de Polignac number, because 667734001 - 2⁹ = 667733489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667734071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130021 + ... + 135058.

It is an arithmetic number, because the mean of its divisors is an integer number (91452600).

Almost surely, 2^667734001 is an apocalyptic number.

It is an amenable number.

667734001 is a deficient number, since it is larger than the sum of its proper divisors (63886799).

667734001 is a wasteful number, since it uses less digits than its factorization.

667734001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265319.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 667734001 is about 25840.5495491098. The cubic root of 667734001 is about 874.0464173725.

The spelling of 667734001 in words is "six hundred sixty-seven million, seven hundred thirty-four thousand, one".