394999 has 8 divisors (see below), whose sum is σ = 435600. Its totient is φ = 355200.

The previous prime is 394993. The next prime is 395023. The reversal of 394999 is 999493.

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

It is a cyclic number.

It is not a de Polignac number, because 394999 - 2⁵ = 394967 is a prime.

394999 is a modest number, since divided by 999 gives 394 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1519 + ... + 1759.

It is an arithmetic number, because the mean of its divisors is an integer number (54450).

2³⁹⁴⁹⁹⁹ is an apocalyptic number.

394999 is a deficient number, since it is larger than the sum of its proper divisors (40601).

394999 is a wasteful number, since it uses less digits than its factorization.

394999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

The product of its digits is 78732, while the sum is 43.

The square root of 394999 is about 628.4894589410. The cubic root of 394999 is about 73.3722772948.

The spelling of 394999 in words is "three hundred ninety-four thousand, nine hundred ninety-nine".