394195601 has 2 divisors, whose sum is σ = 394195602. Its totient is φ = 394195600.

The previous prime is 394195589. The next prime is 394195649. The reversal of 394195601 is 106591493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 259983376 + 134212225 = 16124^2 + 11585^2 .

It is a cyclic number.

It is not a de Polignac number, because 394195601 - 2⁶ = 394195537 is a prime.

It is not a weakly prime, because it can be changed into another prime (394195661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197097800 + 197097801.

It is an arithmetic number, because the mean of its divisors is an integer number (197097801).

Almost surely, 2^394195601 is an apocalyptic number.

It is an amenable number.

394195601 is a deficient number, since it is larger than the sum of its proper divisors (1).

394195601 is an equidigital number, since it uses as much as digits as its factorization.

394195601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 394195601 is about 19854.3597479244. The cubic root of 394195601 is about 733.2249892050.

The spelling of 394195601 in words is "three hundred ninety-four million, one hundred ninety-five thousand, six hundred one".