393966883 has 8 divisors (see below), whose sum is σ = 396403200. Its totient is φ = 391537608.

The previous prime is 393966871. The next prime is 393966889. The reversal of 393966883 is 388669393.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-393966883 is a prime.

It is a super-3 number, since 3×393966883³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (393966889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146610 + ... + 149272.

It is an arithmetic number, because the mean of its divisors is an integer number (49550400).

Almost surely, 2^393966883 is an apocalyptic number.

393966883 is a deficient number, since it is larger than the sum of its proper divisors (2436317).

393966883 is a wasteful number, since it uses less digits than its factorization.

393966883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521.

The product of its digits is 5038848, while the sum is 55.

The square root of 393966883 is about 19848.5990185706. The cubic root of 393966883 is about 733.0831525149.

The spelling of 393966883 in words is "three hundred ninety-three million, nine hundred sixty-six thousand, eight hundred eighty-three".