667663339 has 8 divisors (see below), whose sum is σ = 773791488. Its totient is φ = 564222120.

The previous prime is 667663327. The next prime is 667663351. The reversal of 667663339 is 933366766.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (667663327) and next prime (667663351).

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

It is not a de Polignac number, because 667663339 - 2⁵ = 667663307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667663292 and 667663301.

It is not an unprimeable number, because it can be changed into a prime (667663739) 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, 671197 + ... + 672190.

It is an arithmetic number, because the mean of its divisors is an integer number (96723936).

Almost surely, 2^667663339 is an apocalyptic number.

667663339 is a deficient number, since it is larger than the sum of its proper divisors (106128149).

667663339 is a wasteful number, since it uses less digits than its factorization.

667663339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343465.

The product of its digits is 2204496, while the sum is 49.

The square root of 667663339 is about 25839.1822432522. The cubic root of 667663339 is about 874.0155847123.

The spelling of 667663339 in words is "six hundred sixty-seven million, six hundred sixty-three thousand, three hundred thirty-nine".