667167273 has 20 divisors (see below), whose sum is σ = 1049089360. Its totient is φ = 421367832.

The previous prime is 667167271. The next prime is 667167283. The reversal of 667167273 is 372761766.

It is not a de Polignac number, because 667167273 - 2¹ = 667167271 is a prime.

It is a super-2 number, since 2×667167273² = 890224340324513058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667167271) 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 19 ways as a sum of consecutive naturals, for example, 215215 + ... + 218292.

It is an arithmetic number, because the mean of its divisors is an integer number (52454468).

Almost surely, 2^667167273 is an apocalyptic number.

It is an amenable number.

667167273 is a deficient number, since it is larger than the sum of its proper divisors (381922087).

667167273 is a wasteful number, since it uses less digits than its factorization.

667167273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433538 (or 433529 counting only the distinct ones).

The product of its digits is 444528, while the sum is 45.

The square root of 667167273 is about 25829.5813554924. The cubic root of 667167273 is about 873.7990699845.

The spelling of 667167273 in words is "six hundred sixty-seven million, one hundred sixty-seven thousand, two hundred seventy-three".