395302069 has 2 divisors, whose sum is σ = 395302070. Its totient is φ = 395302068.

The previous prime is 395302067. The next prime is 395302091. The reversal of 395302069 is 960203593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 356076900 + 39225169 = 18870^2 + 6263^2 .

It is a cyclic number.

It is not a de Polignac number, because 395302069 - 2¹ = 395302067 is a prime.

It is a super-2 number, since 2×395302069² = 312527451511361522, which contains 22 as substring.

Together with 395302067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395302067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197651034 + 197651035.

It is an arithmetic number, because the mean of its divisors is an integer number (197651035).

Almost surely, 2^395302069 is an apocalyptic number.

It is an amenable number.

395302069 is a deficient number, since it is larger than the sum of its proper divisors (1).

395302069 is an equidigital number, since it uses as much as digits as its factorization.

395302069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 37.

The square root of 395302069 is about 19882.2048324626. The cubic root of 395302069 is about 733.9103783000.

The spelling of 395302069 in words is "three hundred ninety-five million, three hundred two thousand, sixty-nine".