667276005 has 32 divisors (see below), whose sum is σ = 1167851520. Its totient is φ = 322652480.

The previous prime is 667276003. The next prime is 667276007. The reversal of 667276005 is 500672766.

It is an interprime number because it is at equal distance from previous prime (667276003) and next prime (667276007).

It is not a de Polignac number, because 667276005 - 2¹ = 667276003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667276003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57916 + ... + 68474.

It is an arithmetic number, because the mean of its divisors is an integer number (36495360).

Almost surely, 2^667276005 is an apocalyptic number.

It is an amenable number.

667276005 is a deficient number, since it is larger than the sum of its proper divisors (500575515).

667276005 is a wasteful number, since it uses less digits than its factorization.

667276005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10961.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 667276005 is about 25831.6860657604. The cubic root of 667276005 is about 873.8465367210.

It can be divided in two parts, 667 and 276005, that added together give a palindrome (276672).

The spelling of 667276005 in words is "six hundred sixty-seven million, two hundred seventy-six thousand, five".