394039601 has 2 divisors, whose sum is σ = 394039602. Its totient is φ = 394039600.

The previous prime is 394039553. The next prime is 394039631. The reversal of 394039601 is 106930493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 392079601 + 1960000 = 19801^2 + 1400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394039601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (394039631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197019800 + 197019801.

It is an arithmetic number, because the mean of its divisors is an integer number (197019801).

Almost surely, 2^394039601 is an apocalyptic number.

It is an amenable number.

394039601 is a deficient number, since it is larger than the sum of its proper divisors (1).

394039601 is an equidigital number, since it uses as much as digits as its factorization.

394039601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 394039601 is about 19850.4307509938. The cubic root of 394039601 is about 733.1282536503.

The spelling of 394039601 in words is "three hundred ninety-four million, thirty-nine thousand, six hundred one".