393279884 has 12 divisors (see below), whose sum is σ = 693659904. Its totient is φ = 195091344.

The previous prime is 393279851. The next prime is 393279907. The reversal of 393279884 is 488972393.

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, 386579 + ... + 387594.

It is an arithmetic number, because the mean of its divisors is an integer number (57804992).

Almost surely, 2^393279884 is an apocalyptic number.

It is an amenable number.

393279884 is a deficient number, since it is larger than the sum of its proper divisors (300380020).

393279884 is a wasteful number, since it uses less digits than its factorization.

393279884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774304 (or 774302 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The square root of 393279884 is about 19831.2854853134. The cubic root of 393279884 is about 732.6567880666.

The spelling of 393279884 in words is "three hundred ninety-three million, two hundred seventy-nine thousand, eight hundred eighty-four".