667682343 has 12 divisors (see below), whose sum is σ = 964655328. Its totient is φ = 445017600.

The previous prime is 667682333. The next prime is 667682369. The reversal of 667682343 is 343286766.

It is not a de Polignac number, because 667682343 - 2⁵ = 667682311 is a prime.

It is a super-2 number, since 2×667682343² = 891599422307939298, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667682303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64743 + ... + 74343.

It is an arithmetic number, because the mean of its divisors is an integer number (80387944).

Almost surely, 2^667682343 is an apocalyptic number.

667682343 is a deficient number, since it is larger than the sum of its proper divisors (296972985).

667682343 is a wasteful number, since it uses less digits than its factorization.

667682343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17334 (or 17331 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The square root of 667682343 is about 25839.5499767314. The cubic root of 667682343 is about 874.0238771324.

The spelling of 667682343 in words is "six hundred sixty-seven million, six hundred eighty-two thousand, three hundred forty-three".