393894 has 24 divisors (see below), whose sum is σ = 867360. Its totient is φ = 129168.

The previous prime is 393871. The next prime is 393901. The reversal of 393894 is 498393.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1284 + ... + 1560.

It is an arithmetic number, because the mean of its divisors is an integer number (36140).

2³⁹³⁸⁹⁴ is an apocalyptic number.

393894 is an abundant number, since it is smaller than the sum of its proper divisors (473466).

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

393894 is a wasteful number, since it uses less digits than its factorization.

393894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 361 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 393894 is about 627.6097513583. The cubic root of 393894 is about 73.3037943474.

It can be divided in two parts, 39389 and 4, that added together give a palindrome (39393).

The spelling of 393894 in words is "three hundred ninety-three thousand, eight hundred ninety-four".