395163497 has 2 divisors, whose sum is σ = 395163498. Its totient is φ = 395163496.

The previous prime is 395163469. The next prime is 395163499. The reversal of 395163497 is 794361593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294843241 + 100320256 = 17171^2 + 10016^2 .

It is a cyclic number.

It is not a de Polignac number, because 395163497 - 2¹⁰ = 395162473 is a prime.

It is a super-2 number, since 2×395163497² = 312308378722538018, which contains 22 as substring.

Together with 395163499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (395163499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197581748 + 197581749.

It is an arithmetic number, because the mean of its divisors is an integer number (197581749).

Almost surely, 2^395163497 is an apocalyptic number.

It is an amenable number.

395163497 is a deficient number, since it is larger than the sum of its proper divisors (1).

395163497 is an equidigital number, since it uses as much as digits as its factorization.

395163497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 612360, while the sum is 47.

The square root of 395163497 is about 19878.7197022343. The cubic root of 395163497 is about 733.8246115554.

The spelling of 395163497 in words is "three hundred ninety-five million, one hundred sixty-three thousand, four hundred ninety-seven".