667273067 has 8 divisors (see below), whose sum is σ = 680082480. Its totient is φ = 654513760.

The previous prime is 667273063. The next prime is 667273091. The reversal of 667273067 is 760372766.

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 667273067 - 2² = 667273063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667273063) 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, 14933 + ... + 39465.

It is an arithmetic number, because the mean of its divisors is an integer number (85010310).

Almost surely, 2^667273067 is an apocalyptic number.

667273067 is a deficient number, since it is larger than the sum of its proper divisors (12809413).

667273067 is a wasteful number, since it uses less digits than its factorization.

667273067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25053.

The product of its (nonzero) digits is 444528, while the sum is 44.

The square root of 667273067 is about 25831.6291975555. The cubic root of 667273067 is about 873.8452542108.

The spelling of 667273067 in words is "six hundred sixty-seven million, two hundred seventy-three thousand, sixty-seven".