396999 has 6 divisors (see below), whose sum is σ = 573456. Its totient is φ = 264660.

The previous prime is 396997. The next prime is 397013. The reversal of 396999 is 999693.

It is not a de Polignac number, because 396999 - 2¹ = 396997 is a prime.

396999 is a modest number, since divided by 999 gives 396 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396997) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22047 + ... + 22064.

It is an arithmetic number, because the mean of its divisors is an integer number (95576).

2³⁹⁶⁹⁹⁹ is an apocalyptic number.

396999 is a deficient number, since it is larger than the sum of its proper divisors (176457).

396999 is a wasteful number, since it uses less digits than its factorization.

396999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44117 (or 44114 counting only the distinct ones).

The product of its digits is 118098, while the sum is 45.

The square root of 396999 is about 630.0785665296. The cubic root of 396999 is about 73.4959042560.

The spelling of 396999 in words is "three hundred ninety-six thousand, nine hundred ninety-nine".