394957163 has 8 divisors (see below), whose sum is σ = 398383920. Its totient is φ = 391538560.

The previous prime is 394957159. The next prime is 394957181. The reversal of 394957163 is 361759493.

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 394957163 - 2² = 394957159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394957153) 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, 131543 + ... + 134511.

It is an arithmetic number, because the mean of its divisors is an integer number (49797990).

Almost surely, 2^394957163 is an apocalyptic number.

394957163 is a deficient number, since it is larger than the sum of its proper divisors (3426757).

394957163 is a wasteful number, since it uses less digits than its factorization.

394957163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077.

The product of its digits is 612360, while the sum is 47.

The square root of 394957163 is about 19873.5292034404. The cubic root of 394957163 is about 733.6968675292.

The spelling of 394957163 in words is "three hundred ninety-four million, nine hundred fifty-seven thousand, one hundred sixty-three".