617671966 has 8 divisors (see below), whose sum is σ = 927743904. Its totient is φ = 308424000.

The previous prime is 617671949. The next prime is 617671981. The reversal of 617671966 is 669176716.

617671966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204115 + ... + 207118.

It is an arithmetic number, because the mean of its divisors is an integer number (115967988).

Almost surely, 2^617671966 is an apocalyptic number.

617671966 is a deficient number, since it is larger than the sum of its proper divisors (310071938).

617671966 is a wasteful number, since it uses less digits than its factorization.

617671966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411986.

The product of its digits is 571536, while the sum is 49.

The square root of 617671966 is about 24853.0071822305. The cubic root of 617671966 is about 851.6332914227.

The spelling of 617671966 in words is "six hundred seventeen million, six hundred seventy-one thousand, nine hundred sixty-six".