394168601 has 2 divisors, whose sum is σ = 394168602. Its totient is φ = 394168600.

The previous prime is 394168589. The next prime is 394168603. The reversal of 394168601 is 106861493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310464400 + 83704201 = 17620^2 + 9149^2 .

It is a cyclic number.

It is not a de Polignac number, because 394168601 - 2¹⁴ = 394152217 is a prime.

Together with 394168603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (394168603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197084300 + 197084301.

It is an arithmetic number, because the mean of its divisors is an integer number (197084301).

Almost surely, 2^394168601 is an apocalyptic number.

It is an amenable number.

394168601 is a deficient number, since it is larger than the sum of its proper divisors (1).

394168601 is an equidigital number, since it uses as much as digits as its factorization.

394168601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 394168601 is about 19853.6797848661. The cubic root of 394168601 is about 733.2082483394.

The spelling of 394168601 in words is "three hundred ninety-four million, one hundred sixty-eight thousand, six hundred one".