327678406 has 12 divisors (see below), whose sum is σ = 540263556. Its totient is φ = 148944620.

The previous prime is 327678391. The next prime is 327678409. The reversal of 327678406 is 604876723.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327678409) 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 5 ways as a sum of consecutive naturals, for example, 676780 + ... + 677263.

It is an arithmetic number, because the mean of its divisors is an integer number (45021963).

Almost surely, 2^327678406 is an apocalyptic number.

327678406 is a deficient number, since it is larger than the sum of its proper divisors (212585150).

327678406 is a wasteful number, since it uses less digits than its factorization.

327678406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354067 (or 1354056 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 327678406 is about 18101.8895698764. The cubic root of 327678406 is about 689.4179829149.

The spelling of 327678406 in words is "three hundred twenty-seven million, six hundred seventy-eight thousand, four hundred six".