395694407 has 2 divisors, whose sum is σ = 395694408. Its totient is φ = 395694406.

The previous prime is 395694389. The next prime is 395694413. The reversal of 395694407 is 704496593.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 395694407 - 2⁸ = 395694151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395694487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197847203 + 197847204.

It is an arithmetic number, because the mean of its divisors is an integer number (197847204).

Almost surely, 2^395694407 is an apocalyptic number.

395694407 is a deficient number, since it is larger than the sum of its proper divisors (1).

395694407 is an equidigital number, since it uses as much as digits as its factorization.

395694407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 395694407 is about 19892.0689471960. The cubic root of 395694407 is about 734.1531004648.

The spelling of 395694407 in words is "three hundred ninety-five million, six hundred ninety-four thousand, four hundred seven".