394653 has 8 divisors (see below), whose sum is σ = 601408. Its totient is φ = 225504.

The previous prime is 394643. The next prime is 394673. The reversal of 394653 is 356493.

It is a happy number.

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

It is not a de Polignac number, because 394653 - 2⁴ = 394637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 394653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394633) 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, 9376 + ... + 9417.

It is an arithmetic number, because the mean of its divisors is an integer number (75176).

2³⁹⁴⁶⁵³ is an apocalyptic number.

It is an amenable number.

394653 is a deficient number, since it is larger than the sum of its proper divisors (206755).

394653 is a wasteful number, since it uses less digits than its factorization.

394653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18803.

The product of its digits is 9720, while the sum is 30.

The square root of 394653 is about 628.2141354666. The cubic root of 394653 is about 73.3508475156.

The spelling of 394653 in words is "three hundred ninety-four thousand, six hundred fifty-three".