394693 has 8 divisors (see below), whose sum is σ = 430808. Its totient is φ = 359424.

The previous prime is 394673. The next prime is 394699. The reversal of 394693 is 396493.

It can be written as a sum of positive squares in 4 ways, for example, as 12769 + 381924 = 113^2 + 618^2 .

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

It is not a de Polignac number, because 394693 - 2¹³ = 386501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394699) 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, 1105 + ... + 1417.

It is an arithmetic number, because the mean of its divisors is an integer number (53851).

2³⁹⁴⁶⁹³ is an apocalyptic number.

It is an amenable number.

394693 is a deficient number, since it is larger than the sum of its proper divisors (36115).

394693 is a wasteful number, since it uses less digits than its factorization.

394693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423.

The product of its digits is 17496, while the sum is 34.

The square root of 394693 is about 628.2459709381. The cubic root of 394693 is about 73.3533255868.

The spelling of 394693 in words is "three hundred ninety-four thousand, six hundred ninety-three".