394255607 has 2 divisors, whose sum is σ = 394255608. Its totient is φ = 394255606.

The previous prime is 394255597. The next prime is 394255637. The reversal of 394255607 is 706552493.

It is a weak prime.

It is an emirp because it is prime and its reverse (706552493) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 394255607 - 2¹⁰ = 394254583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394255637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197127803 + 197127804.

It is an arithmetic number, because the mean of its divisors is an integer number (197127804).

Almost surely, 2^394255607 is an apocalyptic number.

394255607 is a deficient number, since it is larger than the sum of its proper divisors (1).

394255607 is an equidigital number, since it uses as much as digits as its factorization.

394255607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 394255607 is about 19855.8708446646. The cubic root of 394255607 is about 733.2621921116.

The spelling of 394255607 in words is "three hundred ninety-four million, two hundred fifty-five thousand, six hundred seven".