667067417 has 8 divisors (see below), whose sum is σ = 683848032. Its totient is φ = 650311200.

The previous prime is 667067411. The next prime is 667067419. The reversal of 667067417 is 714760766.

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

It is a cyclic number.

It is not a de Polignac number, because 667067417 - 2⁶ = 667067353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667067411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57458 + ... + 68084.

It is an arithmetic number, because the mean of its divisors is an integer number (85481004).

Almost surely, 2^667067417 is an apocalyptic number.

It is an amenable number.

667067417 is a deficient number, since it is larger than the sum of its proper divisors (16780615).

667067417 is a wasteful number, since it uses less digits than its factorization.

667067417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12199.

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 667067417 is about 25827.6483056433. The cubic root of 667067417 is about 873.7554735048.

The spelling of 667067417 in words is "six hundred sixty-seven million, sixty-seven thousand, four hundred seventeen".