394396806 has 8 divisors (see below), whose sum is σ = 788793624. Its totient is φ = 131465600.

The previous prime is 394396789. The next prime is 394396811. The reversal of 394396806 is 608693493.

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

394396806 is an admirable number.

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, 32866395 + ... + 32866406.

It is an arithmetic number, because the mean of its divisors is an integer number (98599203).

Almost surely, 2^394396806 is an apocalyptic number.

394396806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394396806 is a wasteful number, since it uses less digits than its factorization.

394396806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65732806.

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 394396806 is about 19859.4261246392. The cubic root of 394396806 is about 733.3497186881.

The spelling of 394396806 in words is "three hundred ninety-four million, three hundred ninety-six thousand, eight hundred six".