667000401 has 8 divisors (see below), whose sum is σ = 894790560. Its totient is φ = 441938592.

The previous prime is 667000387. The next prime is 667000403. The reversal of 667000401 is 104000766.

667000401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 667000401 - 2⁶ = 667000337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (667000403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681516 + ... + 682493.

It is an arithmetic number, because the mean of its divisors is an integer number (111848820).

Almost surely, 2^667000401 is an apocalyptic number.

It is an amenable number.

667000401 is a deficient number, since it is larger than the sum of its proper divisors (227790159).

667000401 is a wasteful number, since it uses less digits than its factorization.

667000401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364175.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 667000401 is about 25826.3509036798. The cubic root of 667000401 is about 873.7262123155.

The spelling of 667000401 in words is "six hundred sixty-seven million, four hundred one", and thus it is an aban number.