395744117 has 2 divisors, whose sum is σ = 395744118. Its totient is φ = 395744116.

The previous prime is 395744113. The next prime is 395744123. The reversal of 395744117 is 711447593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 387853636 + 7890481 = 19694^2 + 2809^2 .

It is a cyclic number.

It is not a de Polignac number, because 395744117 - 2² = 395744113 is a prime.

It is a super-2 number, since 2×395744117² = 313226812280219378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395744113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197872058 + 197872059.

It is an arithmetic number, because the mean of its divisors is an integer number (197872059).

Almost surely, 2^395744117 is an apocalyptic number.

It is an amenable number.

395744117 is a deficient number, since it is larger than the sum of its proper divisors (1).

395744117 is an equidigital number, since it uses as much as digits as its factorization.

395744117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 41.

The square root of 395744117 is about 19893.3184009104. The cubic root of 395744117 is about 734.1838423891.

The spelling of 395744117 in words is "three hundred ninety-five million, seven hundred forty-four thousand, one hundred seventeen".