394342699 has 2 divisors, whose sum is σ = 394342700. Its totient is φ = 394342698.

The previous prime is 394342681. The next prime is 394342703. The reversal of 394342699 is 996243493.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394342699 is a prime.

It is not a weakly prime, because it can be changed into another prime (394342639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197171349 + 197171350.

It is an arithmetic number, because the mean of its divisors is an integer number (197171350).

Almost surely, 2^394342699 is an apocalyptic number.

394342699 is a deficient number, since it is larger than the sum of its proper divisors (1).

394342699 is an equidigital number, since it uses as much as digits as its factorization.

394342699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 49.

The square root of 394342699 is about 19858.0638280775. The cubic root of 394342699 is about 733.3161812563.

The spelling of 394342699 in words is "three hundred ninety-four million, three hundred forty-two thousand, six hundred ninety-nine".