393916 has 6 divisors (see below), whose sum is σ = 689360. Its totient is φ = 196956.

The previous prime is 393901. The next prime is 393919. The reversal of 393916 is 619393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49236 + ... + 49243.

2³⁹³⁹¹⁶ is an apocalyptic number.

It is an amenable number.

393916 is a deficient number, since it is larger than the sum of its proper divisors (295444).

393916 is a wasteful number, since it uses less digits than its factorization.

393916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98483 (or 98481 counting only the distinct ones).

The product of its digits is 4374, while the sum is 31.

The square root of 393916 is about 627.6272779285. The cubic root of 393916 is about 73.3051590576.

The spelling of 393916 in words is "three hundred ninety-three thousand, nine hundred sixteen".