394066303 has 2 divisors, whose sum is σ = 394066304. Its totient is φ = 394066302.

The previous prime is 394066271. The next prime is 394066331. The reversal of 394066303 is 303660493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 394066303 - 2⁵ = 394066271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394066333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197033151 + 197033152.

It is an arithmetic number, because the mean of its divisors is an integer number (197033152).

Almost surely, 2^394066303 is an apocalyptic number.

394066303 is a deficient number, since it is larger than the sum of its proper divisors (1).

394066303 is an equidigital number, since it uses as much as digits as its factorization.

394066303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 34.

The square root of 394066303 is about 19851.1033194631. The cubic root of 394066303 is about 733.1448133636.

The spelling of 394066303 in words is "three hundred ninety-four million, sixty-six thousand, three hundred three".