168427646 has 8 divisors (see below), whose sum is σ = 258516984. Its totient is φ = 82255320.

The previous prime is 168427639. The next prime is 168427657. The reversal of 168427646 is 646724861.

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

It is a super-3 number, since 3×168427646³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 168427597 and 168427606.

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, 979145 + ... + 979316.

It is an arithmetic number, because the mean of its divisors is an integer number (32314623).

Almost surely, 2^168427646 is an apocalyptic number.

168427646 is a deficient number, since it is larger than the sum of its proper divisors (90089338).

168427646 is a wasteful number, since it uses less digits than its factorization.

168427646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958506.

The product of its digits is 387072, while the sum is 44.

The square root of 168427646 is about 12977.9677145538. The cubic root of 168427646 is about 552.2526301970.

The spelling of 168427646 in words is "one hundred sixty-eight million, four hundred twenty-seven thousand, six hundred forty-six".